CELL BIOLOGY. Which of the following cell structures does not have membranes? A. Ribosomes B. Mitochondria C. Chloroplasts D.
|
|
- Lee Taylor
- 5 years ago
- Views:
Transcription
1 1 CELL BIOLOGY PROKARYOTIC and EUKARYOTIC SP/1. SP/2. SP/4. Plant and animal cells both have A. ribosomes, cell walls and mitochondria. B. Golgi apparatus, chromosomes and mitochondria. C. Golgi apparatus, cell walls and ribosomes. D. large vacuoles, cell membranes and mitochondria. Prokaryotic and eukaryotic cells all have A. circular chromosomes. B. an endoplasmic reticulum. C. membrane bound nuclei. D. a cell membrane and ribosomes. Which of the following cell structures does not have membranes? A. Ribosomes B. Mitochondria C. Chloroplasts D. Golgi apparatus 98/1. Which function is carried out by the Golgi apparatus? A. Modification of proteins for secretion B. Synthesis of proteins C. Digestion of proteins D. Endocytosis 99/2. What is the size range of most viruses? A nm B. 1 5 nm C nm D μm 99/3. What is a function of the rough endoplasmic reticulum? A. It provides a site for transcription. B. It provides a surface for the reactions of the Krebs cycle. C. It separates positive and negative charges in the cell. D. It provides a site for protein synthesis. 99/4. What is a similarity between eukaryotic and prokaryotic cells? A. They both have chromosomes in their nuclei. B. They both have a variety of membrane-bound organelles. C. They both use DNA as their genetic material. D. They both have mitochondria for producing ATP.
2 2 N99/1. N99/2. Which structure is the smallest? A. A cell B. A virus C. A mitochondrion D. A bacterium Which structure is found in eukaryotic cells but not in prokaryotic cells? A. Lysosome B. Plasmid C. Cell wall D. Ribosome 00/2. Which function is carried out by the flagellum of a prokaryote? A. Movement of food towards the cell B. Movement of the whole cell from one place to another C. Movement of naked nucleic acid inside the cell D. Movement of water around the cell to speed up gas exchange N00/2. N01c/2. N01/3. N01/4. Which of these functions are carried out by the plant cell wall? I. Providing support to the cell and to the plant II. Controlling the diffusion of solutes into and out of the cell III. Active transport of mineral nutrients into the cell A. I only B. I and II only C. II and III only D. I, II and III Which statement correctly describes the Golgi apparatus? A. It is found in prokaryotic and eukaryotic cells. B. It is composed of a stack of disc-shaped structures. C. It is only found in plant cells. D. It is situated within the endoplasmic reticulum. A structure is seen in an electron micrograph of an animal cell. Its membrane appears to be continuous with the nuclear membrane and resembles a series of flattened sacs. What is this structure? A. The endoplasmic reticulum B. The Golgi apparatus C. A mitochondrion D. A chloroplast In viewing an electron micrograph of a cell, ribosomes, a slime capsule and a single circular chromosome are observed. What other structure is likely to be seen? A. The rough endoplasmic reticulum (rough ER) B. Mitochondria C. A nuclear membrane D. A plasmid
3 3 02/2. Which is mainly responsible for maintaining the structure of a cell membrane? A. Water B. Phospholipids C. Triglycerides D. Proteins N02/1. N02/3. What is the correct order of increasing size for the following biological structures? I. The diameter of a virus II. The diameter of a bacterium III. The thickness of a cell surface membrane IV. The diameter of a eukaryotic cell A. I < III < II < IV B. I < III < IV < II C. III < I < II < IV D. III < II < I < IV Which structure is only found in plant cells? A. Mitochondrion B. Cell membrane C. Chloroplast D. Golgi apparatus 03/1. Which characteristic applies to all prokaryote cells? A. They have a nucleus. B. They have chlorophyll. C. They have mitochondria. D. They have ribosomes. 03/3. Which structural feature(s) is/are characteristic of viruses? I. DNA or RNA II. A protein coat III. Ribosomes A. I only B. I and II only C. II and III only D. I, II and III 03/4. What is the function of the lysosome in cells? A. Digestion of substances B. Manufacture of food storage molecules C. Release of energy D. Manufacture of proteins N03/3. Which cellular structure(s) is (are) found in both a plant cell and an animal cell? I. Cell wall II. Chloroplast III. Mitochondrion A. I only B. I and II only C. I and III only D. III only
4 4 N03/4. N03/5. M04/1. M04/2. How do the ribosomes of prokaryotic and eukaryotic cells differ? A. Their size B. Their function C. The raw materials they utilize D. The process by which they are synthesized Which of the following is not found in a prokaryotic cell? A. Cytoplasm B. A nuclear membrane C. DNA D. Enzymes What is the term used to describe the minimum distance that two points can be distinguished as separate? A. Compound B. Magnification C. Resolution D. Nanometre In which list are the items correctly ordered, from smallest to largest? A. molecules, membrane thickness, viruses, bacteria B. molecules, viruses, bacteria, membrane thickness C. cells, viruses, organelles, membrane thickness D. cells, organelles, viruses, membrane thickness The following diagram of a prokaryote refers to questions 3 and 4. M04/3. M04/4. What is the function of structure II? A. Passing of hereditary information to offspring B. Movement of the organism C. Regulation of the entry and exit of materials D. Production of proteins Which structures are found in all eukaryotic and prokaryotic cells? A. I and II only B. II and IV only C. II and V only D. III and V only
5 5 N04/1. What are visible under an electron microscope but not under a light microscope? A. Bacteria B. Nuclei C. Sugar molecules D. Viruses N04/2. If a red blood cell has a diameter of 8 µm and a student shows it with a diameter of 40 mm in a drawing, what is the magnification of the drawing? A. x B. x 0.2 C. x 5 D. x N04/4. The diagram shows part of an animal cell as seen in an electron micrograph. What is the structure labelled X? A. Golgi apparatus B. Lysosome C. Mitochondrion D. Nucleus M05tz1/2. A photomicrograph of a tissue is accompanied by a scale bar which represents 1 µm. The scale bar is 10 mm long. What is the magnification of this photomicrograph? A. x 10 B. x C. x D. x M05tz1/6. A cell has a high density of rough endoplasmic reticulum (ER) in its cytoplasm. Which other organelle can be expected to occur in large numbers in this cell? A. Chloroplasts B. Microvilli C. Golgi apparatus D. Nuclei
6 6 N05/1. N05/2. N05/3. Which functions of life are carried out by unicellular organisms? A. Nutrition but not reproduction B. Nutrition and reproduction, but not excretion C. Nutrition, reproduction and excretion but not transmission of nerve impulses D. Nutrition, reproduction, excretion and transmission of nerve impulses What is a function of the bacterial cell wall? A. Absorption of glucose by active transport B. Exchange of plasmids between cells C. Increasing the surface area for oxygen diffusion D. Preventing internal pressures from bursting the cell What is a difference between prokaryotic and eukaryotic cells? A. DNA in eukaryotes is associated with protein but in prokaryotes it is not. B. Prokaryotic cells respire anaerobically using mitochondria but eukaryotic cells do not. C. Prokaryotic cells have 80S ribosomes whereas eukaryotic cells have 70S ribosomes. D. Eukaryotic cells have enzymes in their cytoplasm but prokaryotic cells do not. M06tz1/1. Which of the labelled parts on the diagram of the prokaryote is the nucleoid? A. I B. II C. III D. IV M06tz1/2. How are all cells formed? A. By mitosis B. By cell division C. By meiosis D. By fragmentation M06tz2/2. The width of a human hair is 0.1 mm. What is the width in μm? A. 10 μm B. 100 μm C μm D μm Ν06/1. Which ratio limits the size of cells? A. The rate of metabolism to mass B. The surface area to volume C. The mass to volume D. The surface area to mass
7 7 M07/1. M07/2. M07/3. N07/1. N07/4. Which structure is found in all prokaryotic cells? A. Flagella B. Ribosomes C. Mitochondria D. Vacuoles Which combination of features is found in most plant and animal cells? A. plasma membrane, lysosome, Golgi apparatus B. cytoplasm, mitochondria, ribosomes C. rough ER, nucleus, centrioles D. plastids, cytoplasm, nucleus What is the size range for the diameters of most plant and animal cells? A. 100 nm to 1 μm B. 1 μm to 10 μm C. 10 μm to 100 μm D. 100 μm to 1 mm What advantages does electron microscopy have over light microscopy? I. Excellent resolution throughout magnification range. II. Biological material is easy to prepare and stain. III. Movement of living cells can be seen. A. II and III only B. I and II only C. I only D. III only Viruses have a non-cellular structure. What components make up their structure? A. Lipid bilayer surrounding cytoplasm B. Lipid bilayer surrounding DNA or RNA C. Protein coat surrounding DNA or RNA D. Protein coat surrounding active mitochondria
8 8 MEMBRANES and TRANSPORT N99/3. The cells of plant roots can take up ions from the soil against the concentration gradient. What is the process used? A. Osmosis B. Passive transport C. Diffusion D. Carrier-assisted transport 00/3. What is needed for osmosis to occur? I. a concentration gradient of solutes II. a partially permeable membrane III. a supply of ATP A. I only B. I and II only C. I and III only D. I, II and III N00/3. The table shows the normal concentration of two ions in red blood cells and in the surrounding plasma: concentration / mm dm -3 Ions Red blood cells Blood plasma Potassium (K + ) Sodium (Na + ) What does this information show? A. Sodium is actively transported out of the cell. B. Sodium is transported out of the cell by diffusion, but potassium does not move. C. Sodium moves into the red blood cells by diffusion and the potassium moves out by diffusion. D. Osmosis is occurring. 01/2. Cells in the placenta take in droplets of fluid from the maternal blood. Vesicles containing the fluid are formed by this process. The vesicles are visible in the cytoplasm of the placenta cells. What is the transport mechanism involved? A. Pinocytosis B. Exocytosis C. Phagocytosis D. Carrier-assisted transport
9 9 03/2. In the diagram below macromolecules are being transported to the exterior of a cell. What is the name of this process? A. Exocytosis B. Pinocytosis C. Endocytosis D. Phagocytosis 03/5. What is essential for diffusion? A. A concentration gradient B. A selectively permeable membrane C. A source of energy D. A protein N02/4. N03/1. M04/5. Which of the following is a feature of exocytosis but not endocytosis? A. Lipid bilayer fusion B. Vesicle formation C. Lipid bilayer adhesion D. Secretion Which statement about facilitated diffusion is correct? A. It requires a protein. B. It refers to the diffusion of water. C. It requires ATP. D. It involves movement against a concentration gradient. Which structure may require ATP for its functioning?
10 M05tz1/3. What part of the plasma membrane is responsible for preventing the free movement of ions into and out of the cell? 10 A. I B. II C. III D. IV M05tz1/4. What is facilitated diffusion? A. The passive movement of a particle through the phospholipid bilayer of the cell membrane. B. The passive movement of a particle across a cell membrane via a channel protein. C. The movement of a particle down a concentration gradient helped by active pumping. D. The movement of a particle up a concentration gradient helped by active pumping. M05tz2/2. Which of the following is required for osmosis to occur? A. An enzyme B. A fully permeable membrane C. ATP D. A solute concentration gradient M06tz1/3. Which pair of characteristics are correct for the cellular processes of exocytosis and endocytosis? Exocytosis Endocytosis A. Secretion of cellular materials Vesicles are moved away from the plasma membrane B. Cell membranes fuse Vesicles are moved towards the plasma membrane C. Infolding of plasma membrane Vesicles are moved away from the plasma membrane Vesicles moved towards the D. plasma membrane Plasma membrane increases in size
11 11 M06tz2/4. What process involves the movement of a solvent through a semi-permeable membrane from a region of low solute concentration to a region of high solute concentration? A. Active transport B. Osmosis C. Simple diffusion D. Facilitated diffusion M06tz2/1. Which two molecules are the principal components of membranes? A. Glycogen and protein B. Lipid and glycogen C. Cellulose and protein D. Protein and lipid Ν06/2. Which statements are characteristics of diffusion through membranes? I. Polysaccharides can be transported. II. It can be facilitated by special channels. III. It is affected by concentration gradients. A. I and II only B. I and III only C. II and III only D. I, II and III M07/4. During endocytosis, what change will most likely occur in the plasma membrane of a cell? A. It will form two phospholipid monolayers. B. It will become electrically charged. C. It will partially dissolve. D. It will form vesicles. M07/5. Which of the following could be a function of a membrane protein? A. Energy storage B. Enzymatic activity C. Oxygen uptake D. Thermal insulation N07/2. The diagram below shows part of a plasma membrane. What label should be used for structure I? A. Peripheral protein B. Phospholipid C. Cholesterol D. Integral protein
12 12 MITOSIS SP/3. During mitosis A. DNA transcription and replication occur. B. two genetically identical nuclei are produced. C. replicated DNA molecules are moved to opposite ends of the cell. D. homologous chromosomes form pairs. 98/3. What is produced by mitosis? A. Two genetically identical nuclei B. Four genetically identical nuclei C. Two genetically different nuclei D. Four genetically different nuclei 98/4. In which group of organs can tumours occur? I. lung, breast, cervix and skin II. brain, bone, testis and intestine III. eye, oesophagus, thyroid gland, pancreas IV. leaf, stem and root A. I but not II, III or IV B. I and II but not III or IV C. I, II and III but not IV D. I, II, III and IV 00/4. What causes the chromosomes of an animal cell to move to opposite ends of the cell during mitosis? A. microtubules B. mesosomes C. nuclear membranes D. mitochondria 02/3. Which processes occur during interphase? I. DNA replication II. DNA transcription III. Separation of replicated DNA molecules A. I and II only B. I and III only C. II and III only D. I, II and III N02/5. Which process occurs during interphase of the cell cycle? A. Duplication of chromosomes B. Separation of chromatids C. Condensation of chromatin D. Migration of centrioles
13 13 03/6. Which statement best describes a role of mitosis? A. It increases genetic variation. B. It facilitates growth of unicellular organisms. C. It facilitates reproduction of some unicellular organisms. D. It repairs damaged cells. N04/5. Which phases of mitosis are shown in diagrams I and II? I II A. metaphase prophase B. metaphase telophase C. anaphase prophase D. anaphase metaphase M05tz1/5. How does mitosis produce two genetically identical nuclei? A. By separation of homologous pairs of chromosomes B. By separation of pairs of chromatids C. By division of the cytoplasm equally in two D. By division of the centrioles in two M05tz2/3. Which of the following are functions of mitosis? = yes = no Reduction in chromosome number Tissue repair A. B. C. D. N05/4. Colchicine is a chemical substance that prevents the formation of microtubules. What stage of mitosis would be prevented, if dividing cells were treated with colchicine? A. Breaking down of the nuclear membrane B. Replication of DNA C. Separation of genetically identical chromosomes (chromatids) D. Supercoiling of chromosomes
14 14 M06tz1/4. Which of the following processes take place during interphase? I. Respiration II. Active transport III. Protein synthesis IV. Replication of DNA A. I only B. I and II only C. I, II and III only D. I, II, III and IV Ν06/4. N07/3. Which statement is characteristic of tumours? A. They occur only in certain animal cells. B. They result from controlled cell division in only some organs. C. They result from uncontrolled cell division and occur in any organ. D. They result from partially controlled transcription. What is the product of mitosis in plant cells? A. Four daughter cells with genetically different nuclei B. Four daughter cells with genetically identical nuclei C. Two daughter cells with genetically different nuclei D. Two daughter cells with genetically identical nuclei
15 15 DATA BASED QUESTION(S) A study was carried out to determine the relationship between the diameter of a molecule and its movement through a membrane. The graph below shows the results of the study. (a) From the information in the graph alone, describe the relationship between the diameter of a molecule and its movement through a membrane. [2] A second study was carried out to investigate the effect of passive protein channels on the movement of glucose into cells. The graph below shows the rate of uptake of glucose into erythrocytes by simple diffusion and facilitated diffusion.
16 16 (b) Identify the rate of glucose uptake at an external glucose concentration of 4 mmol dm -3 by (i) simple diffusion.... [1] (ii) facilitated diffusion.... [1] (c) (i) Compare the effect of increasing the external glucose concentration on glucose uptake by facilitated diffusion and by simple diffusion. [3] (ii) Predict, with a reason, the effect on glucose uptake by facilitated diffusion of increasing the external concentration of glucose to 30 mmol dm -3. [2]
17 17 ESSAY QUESTIONS Explain the importance of the surface area to volume ratio as a factor limiting cell size. [7] Explain the reasons for cells not growing to a large size, including the effects of surface area to volume relationships. [8] Draw a labelled diagram showing the ultrastructure of a typical prokaryote. [4] Draw a labelled diagram of a prokaryotic cell as seen in electron micrographs. [6] Outline the functions of the structures found in prokaryotic cells. [5] Compare the structure of prokaryotic and eukaryotic cells. [5] Draw a labelled diagram of a generalized animal cell showing the ultra structure visible using an electron microscope. [5] Define the term organelle and state one function for each of these organelles: ribosome, golgi apparatus, mitochondrion, lysosome, rough endoplasmic reticulum. [6] Distinguish between the structure of plant and animal cells. [6] Compare, with the aid of a diagram, the structure of generalised prokaryotic and eukaryotic animal cells. [8] State three differences between plant and animal cells. [3] State one function of each of the following organelles. [5] Lysosome Golgi apparatus Rough endoplasmic reticulum Nucleus Mitochondrion Compare simple diffusion with facilitated diffusion as mechanisms to transport solutes across membranes. [5] Describe the process of endocytosis. [5] Draw a labelled diagram to show the fluid mosaic structure of a plasma membrane, indicating the hydrophilic and hydrophobic regions. [5] Distinguish between active and passive movements of materials across plasma membranes, using named examples. [4] Outline how vesicles are used to transport materials secreted by a cell. [6] Explain the processes of active and passive transport that move materials across a membrane. [8] Draw and label a diagram to show the fluid mosaic model of a biological membrane. [6] List the functions of membrane proteins. [4] Explain how the structure and properties of phospholipids help to maintain the structure of cell membranes. [9] Outline the process of endocytosis. [5] Outline the structure of cell membranes, including the substances contained within them and how they are arranged. [5] Compare active transport across membranes with passive transport across membranes. [5] State what is meant by the term osmosis. [4] Compare the movement of materials across cell surface membranes by active and passive transport. [4]
18 18 Explain how substances may pass into cells through the membrane. [8] Explain the various methods cells use to transport materials across membranes. [8] Explain how vesicles are used in cells, including the way in which they form and are reabsorbed. [8] Explain the process of passive transport across the cell membrane. [8] Describe the events that occur during mitosis. [9] Outline one therapeutic use of stem cells. [6] Explain how mitosis produces two genetically identical nuclei. [8] Before cell division in unicellular and multicellular organisms, the nucleus must divide to produce two genetically identical nuclei. Explain the events that occur in cells that result in the production of genetically identical nuclei. [8] Suggest why cell division is necessary in multicellular organisms. [4] Draw diagrams to show the four stages of mitosis in an animal cell with four chromosomes. [5] During an infection, B-lymphocytes produce, by mitosis, clones of identical cells programmed to produce antibodies. Describe briefly the process of mitosis. [6]
Include metabolism, response, homeostasis, growth, reproduction and nutrition.
Topic 2: Cells Topic 2: Cells 2.1 Cell theory Assessment statement IBO Notes Include the following. Living organisms are composed of cells. 2.1.1 Outline the cell theory. Cells are the smallest unit of
More informationHonors Biology-CW/HW Cell Biology 2018
Class: Date: Honors Biology-CW/HW Cell Biology 2018 Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Hooke s discovery of cells was made observing a. living
More informationTopic 2: Cells (12 hours)
Topic : Cells ( hours). Cell theory hours.. Outline the cell theory. Include the following. Living organisms are composed of cells. Cells are the smallest unit of life. Cells come from pre-existing cells...
More informationCell Theory Essential Questions
Cells Vocab words 1. Cell 2. Cell theory 3. Nucleus 4. Eukaryote 5. Prokaryote 6. Organelle 7. Cytoplasm 8. Nuclear envelope 9. Chromatin 10. Chromosome 11. Nucleolus 12. Ribosome 13. Endoplasmic reticulum
More informationThe diagram below represents levels of organization within a cell of a multicellular organism.
STATION 1 1. Unlike prokaryotic cells, eukaryotic cells have the capacity to a. assemble into multicellular organisms b. establish symbiotic relationships with other organisms c. obtain energy from the
More informationThe Cell. What is a cell?
The Cell What is a cell? The Cell What is a cell? Structure which makes up living organisms. The Cell Theory l All living things are composed of cells. l Cells are the basic unit of life. l Cells come
More information2. Cellular and Molecular Biology
2. Cellular and Molecular Biology 2.1 Cell Structure 2.2 Transport Across Cell Membranes 2.3 Cellular Metabolism 2.4 DNA Replication 2.5 Cell Division 2.6 Biosynthesis 2.1 Cell Structure What is a cell?
More informationCells. A. The iodine diffused into the bag. B. The starch was changed to sugar.
Name: Date: 1. A student filled a bag of dialysis tubing with a milky-white starch solution and placed the bag in a beaker of iodine-water as shown in the diagram. An hour later, the student observed that
More informationOverview of Cells. Prokaryotes vs Eukaryotes The Cell Organelles The Endosymbiotic Theory
Overview of Cells Prokaryotes vs Eukaryotes The Cell Organelles The Endosymbiotic Theory Prokaryotic Cells Archaea Bacteria Come in many different shapes and sizes.5 µm 2 µm, up to 60 µm long Have large
More informationIntroduction to Cells
Life Science Introduction to Cells All life forms on our planet are made up of cells. In ALL organisms, cells have the same basic structure. The scientist Robert Hooke was the first to see cells under
More informationIntroduction to Cells
Life Science Introduction to Cells All life forms on our planet are made up of cells. In ALL organisms, cells have the same basic structure. The scientist Robert Hooke was the first to see cells under
More informationBASIC BIOLOGICAL PRINCIPLES
BASIC BIOLOGICAL PRINCIPLES A1 A1. Basic Biological Principles 1. Describe the characteristics of life shared by all prokaryotic and eukaryotic organisms 2. Compare cellular structures and their function
More informationTo help you complete this review activity and to help you study for your test, you should read SC State Standards B
Name: Test Date: PAGE: Biology I: Unit 3 Cell Structure Review for Unit Test Directions: You should use this as a guide to help you study for your test. You should also read through your notes, worksheets,
More information3.1 Cell Theory. KEY CONCEPT Cells are the Basic unit of life.
3.1 Cell Theory KEY CONCEPT Cells are the Basic unit of life. 3.1 Cell Theory The cell theory grew out of the work of many scientists and improvements in the microscope. Many scientists contributed to
More informationUnit 2: Cells Mr. Nagel Meade High School
Unit 2: Cells Mr. Nagel Meade High School Warm Up Construct diagrams of: E. Coli Animal Cell (Liver) Plant Cell Indicate which are present in each: Cell wall, plasma membrane, cytoplasm, pili, flagella,
More informationClass IX: Biology Chapter 5: The fundamental unit of life. Chapter Notes. 1) In 1665, Robert Hooke first discovered and named the cells.
Class IX: Biology Chapter 5: The fundamental unit of life. Key learnings: Chapter Notes 1) In 1665, Robert Hooke first discovered and named the cells. 2) Cell is the structural and functional unit of all
More informationOrganelles & Cells Student Edition. A. chromosome B. gene C. mitochondrion D. vacuole
Name: Date: 1. Which structure is outside the nucleus of a cell and contains DNA? A. chromosome B. gene C. mitochondrion D. vacuole 2. A potato core was placed in a beaker of water as shown in the figure
More informationBiology: Life on Earth
Teresa Audesirk Gerald Audesirk Bruce E. Byers Biology: Life on Earth Eighth Edition Lecture for Chapter 4 Cell Structure and Function Copyright 2008 Pearson Prentice Hall, Inc. Chapter 4 Outline 4.1 What
More informationChapter Life Is Cellular
Chapter 7 7-1 Life Is Cellular The Discovery of the Cell Anton van Leeuwenhoek used a single-lens microscope to observe tiny little organisms in pond water. The Discovery of the Cell In 1665, Robert Hooke
More informationCELL PART Expanded Definition Cell Structure Illustration Function Summary Location ALL CELLS DNA Common in Animals Uncommon in Plants Lysosome
CELL PART Expanded Definition Cell Structure Illustration Function Summary Location is the material that contains the Carry genetic ALL CELLS information that determines material inherited characteristics.
More informationThe Cell. C h a p t e r. PowerPoint Lecture Slides prepared by Jason LaPres North Harris College Houston, Texas
C h a p t e r 2 The Cell PowerPoint Lecture Slides prepared by Jason LaPres North Harris College Houston, Texas Copyright 2009 Pearson Education, Inc., publishing as Pearson Benjamin Cummings Introduction
More informationHuman biology Cells: The Basic Units of Life. Dr. Rawaa Salim Hameed
Human biology Cells: The Basic Units of Life Dr. Rawaa Salim Hameed Reference Text book of human biology by John Kenneth Inglis 3 rd Ed (1985) Cells: The Basic Units of Life Cell theory Cell theory consists
More information[Source: Knox, et al., Biology, Mcgraw Hill, Sydney, 1994, page 65]
1. A study was carried out to determine the relationship between the diameter of a molecule and its movement through a membrane. The graph below shows the results of the study. High Relative ability to
More informationBase your answers to questions 1 and 2 on the diagram below which represents a typical green plant cell and on your knowledge of biology.
Base your answers to questions 1 and 2 on the diagram below which represents a typical green plant cell and on your knowledge of biology. 5. Which letter corresponds to that of the endoplasmic reticulum?
More informationCell Types. Prokaryotes
Cell Types Prokaryotes before nucleus no membrane-bound nucleus only organelle present is the ribosome all other reactions occur in the cytoplasm not very efficient Ex.: bacteria 1 Cell Types Eukaryotes
More information7-1 Life Is Cellular. Copyright Pearson Prentice Hall
7-1 Life Is Cellular The Discovery of the Cell What is the cell theory? The Discovery of the Cell The cell theory states: All living things are composed of cells. Cells are the basic units of structure
More information3 The Organization of Living Things
CHAPTER 1 SECTION Cells: The Basic Units of Life 3 The Organization of Living Things BEFORE YOU READ After you read this section, you should be able to answer these questions: What are the advantages of
More informationClass XI Chapter 8 Cell The Unit of Life Biology
Question 1: Which of the following is not correct? (a) Robert Brown discovered the cell. (b) Schleiden and Schwann formulated the cell theory. (c) Virchow explained that cells are formed from pre-existing
More informationMultiple Choice Identify the letter of the choice that best completes the statement or answers the question.
chapter 7 Test Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. Who was one of the first people to identify and see cork cells? a. Anton van
More informationCell Theory and Structure. Discoveries What are Cells? Cell Theory Cell Structures Organelles
Cell Theory and Structure Discoveries What are Cells? Cell Theory Cell Structures Organelles Discoveries In 1665 Robert Hooke observed a thin slice of cork from an oak tree What he saw reminded him of
More informationQuestion 1: Which of the following is not correct? (a) Robert Brown discovered the cell. (b) Schleiden and Schwann formulated the cell theory. (c) Virchow explained that cells are formed from pre-existing
More informationBiology Mid-Year Review Packet This packet will be collected on the day of the exam for 2 HOMEWORK GRADES.
Name: Period: Date: Biology Mid-Year Review Packet This packet will be collected on the day of the exam for 2 HOMEWORK GRADES. Topics: Observations & Inferences Making A Hypothesis Characteristics of Life
More informationTurns sunlight, water & carbon dioxide (CO 2 ) into sugar & oxygen through photosynthesis
CELL PART/ ORGANELLE FUNCTION (what it does) PICTURE Plant, Animal, or Both Cell Membrane controls what goes in & out of the cell protects the cell Nucleus directs all the cell s activities contains cell
More informationWhat is a cell? 2 Exceptions to The Cell Theory. Famous People. Can You Identify This Object? Basic Unit of all forms of Life. 1.
Can You Identify This Object? CELLS Day 1: CELLULAR COMPONENTS & PROCESES What is a cell? Collection of living material enclosed by a barrier that separates the cell from it s surroundings Basic Unit of
More informationComplete the table by stating the function associated with each organelle. contains the genetic material.... lysosome ribosome... Table 6.
1 (a) Table 6.1 gives the functions of certain organelles in a eukaryotic cell. Complete the table by stating the function associated with each organelle. The first row has been completed for you. Organelle
More informationModule A Unit 4 Homeostasis and Transport. Mr. Mitcheltree
Module A Unit 4 Homeostasis and Transport Mr. Mitcheltree Surface area to Volume Ratio in Plants Surface area to Volume Ratio in us There are a number of necessary conditions that allow effective gaseous
More informationDiscovery of the Cell
Cell Structure Discovery of the Cell Who discovered cells? 1665 Robert Hooke used a compound microscope to examine a piece of cork (20X magnification) He saw little boxes in the cork and called them cells
More informationBasic Structure of a Cell
Basic Structure of a Cell Prokaryotic Cells No nucleus Archaea & Eubacteria One circular chromosome Extremely small Eukaryotic Cells Has a nucleus!!! Membrane-bound organelles Plants, Animals, Fungi, &
More informationBiology EOC Review. Scientific Method. 1. List the steps of the scientific method: Define the following: Hypothesis: Theory: Law:
Scientific Method 1. List the steps of the scientific method: 1. 2. 3. 4. 5. 6. 7. 2. Define the following: Hypothesis: Theory: Law: Biology EOC Review 3. Three redwood trees are kept at different humidity
More informationCell Review. 1. The diagram below represents levels of organization in living things.
Cell Review 1. The diagram below represents levels of organization in living things. Which term would best represent X? 1) human 2) tissue 3) stomach 4) chloroplast 2. Which statement is not a part of
More informationCELL PRACTICE TEST
Name: Date: 1. As a human red blood cell matures, it loses its nucleus. As a result of this loss, a mature red blood cell lacks the ability to (1) take in material from the blood (2) release hormones to
More informationChapter Outline. The Living Cell. The Cell Theory. The Nature and Variety of Cells. Cell theory. Observing Cells: The Microscope
Chapter Outline The Living Cell Chapter 21 The Nature and Variety of Cells How Does a Cell Work? Metabolism: Energy and Life Cell Division Great Idea: Life is based on chemistry, and chemistry takes place
More informationAQA Biology Year 1 - Topic 2 - Cells
Section Topic Description You should be able to: 3.2.1.1 Structure of Label the organelles present in eukaryotic cells. Eukaryotic Cells State the function and structure of the organelles in eukaryotic
More information1- Which of the following molecules stores hereditary information? A. ATP B. DNA C. protein D. carbohydrates
Question 1: Multiple Choice (20 Marks) 1- Which of the following molecules stores hereditary information? A. ATP B. DNA C. protein D. carbohydrates 2- What is the name of the molecule in plants that stores
More informationTHE CELL THEORY (R+R+R+E+G+N+T+S) 3).
CELL BIOLOGY All living things are made up of small individual units called cells. Cells are the smallest functioning living unit. Cells can not normally be seen with the naked eye. To usually observe
More informationAS Biology Summer Work 2015
AS Biology Summer Work 2015 You will be following the OCR Biology A course and in preparation for this you are required to do the following for September 2015: Activity to complete Date done Purchased
More informationLife is Cellular Section 7.1
Life is Cellular Section 7.1 Objectives Understand Cell theory Distinguish between prokaryotes and eukaryotes Understand different types of microscopy, and how they work in more detail What is a Cell?
More informationThe Ultrastructure of Cells (1.2) IB Diploma Biology
The Ultrastructure of Cells (1.2) IB Diploma Biology Explain why cells with different functions have different structures. Cells have different organelles depending on the primary function of the cell
More informationChapter 7. Cell Structure & Function
Chapter 7 Cell Structure & Function Scientists & Discoveries Early 1600 s (Holland): 1st microscope was constructed Anton van Leeuwenhoek (1600 s) used single lens as a microscope to study and very carefully
More informationWhich row in the chart correctly identifies the functions of structures A, B, and C? A) 1 B) 2 C) 3 D) 4
1. What is a similarity between all bacteria and plants? A) They both have a nucleus B) They are both composed of cells C) They both have chloroplasts D) They both lack a cell wall 2. Which statement is
More informationAnaphase. Third phase of mitosis in which the chromosomes separate and move to opposite ends of the cell. Animal Cell
Anaphase Third phase of mitosis in which the chromosomes separate and move to opposite ends of the cell. Animal Cell Antony Van Leevwenhoek 1643- Dutch microscope maker and merchant, observed and described
More information1- What are rod-shaped bacteria called? A. cocci B. bacilli C. spirilla D. halophiles
Question 1: Multiple Choice (20 Marks) 1- What are rod-shaped bacteria called? A. cocci B. bacilli C. spirilla D. halophiles 2- The eukaryotic nucleus houses all of the following except the A. RNA B. DNA
More informationCell Organelles. a review of structure and function
Cell Organelles a review of structure and function TEKS and Student Expectations (SE s) B.4 Science concepts. The student knows that cells are the basic structures of all living things with specialized
More informationCell Structure and Function Unit 4
Cell Structure and Function Unit 4 Definition of Cell A cell is the smallest unit that is capable of performing life functions. RECALL... Levels of Organization! Why do we call them cells? In 1665, Robert
More informationWake Acceleration Academy - Biology Note Guide Unit 3: Cell Structures and Functions
Wake Acceleration Academy - Biology Note Guide Unit 3: Cell Structures and Functions Extra Resources Website: http://waa-science.weebly.com Module 1: Overview of Cell Structures and Functions Vocabulary
More informationand their organelles
and their organelles Discovery Video: Cells REVIEW!!!! The Cell Theory 1. Every living organism is made of one or more cells. 2. The cell is the basic unit of structure and function. It is the smallest
More informationName: Class: Date: ID: A
Class: Date: Ch 7 Review Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. Researchers use fluorescent labels and light microscopy to a. follow
More informationChapter 03. Lecture and Animation Outline
Chapter 03 Lecture and Animation Outline To run the animations you must be in Slideshow View. Use the buttons on the animation to play, pause, and turn audio/text on or off. Please Note: Once you have
More informationNCERT solution for Fundamental Unit of Life
1 NCERT solution for Fundamental Unit of Life Question 1 Who discovered cells and how? An English Botanist, Robert Hooke discovered cells. In 1665, he used self-designed microscope to observe cells in
More information8/25/ Opening Questions: Are all living things made of cells? What are at least five things you know about cells?
Chapter 3 The Cell: Module Hyperlinks 3.1 Cells are the fundamental units of life 3.2 Plant vs. animal cells 3.3 Membranes: structure 3.4 Membranes: function 3.5 The nucleus 3.6 Organelles in protein production
More informationHuman Biology. THEORY Conceptual Scheme
Human Biology Introduction: Definition of BIOLOGY Scientific method: 1. observation 2. hypothesis 3. experimentation 4. conclusion Terms: variables, controls, theory, law, data, repeatable Assumptions:
More informationChapter 5: The Fundamental Unit of Life Science
Chapter 5: The Fundamental Unit of Life Science 1 Who discovered cells and how? An English Botanist, Robert Hooke discovered cells In 1665, he used self-designed microscope to observe cells in a cork slice
More informationExam 1-6 Review Homework Answer the following in complete sentences.
Exam 1-6 Review Homework Answer the following in complete sentences. 1. Explain the relationship between enzymes and activation energy. (Clue: How are enzymes and activation energy related?) http://raeonscience.weebly.com/enzymes.html
More information7 Characteristics of Life
7 Characteristics of Life 1. Interdependence 2. Metabolism 3. Homeostasis 4. Cellular Structure and Function 5. Reproduction 6. Heredity 7. Evolution The Cell Theory All living things are composed of one
More informationCells Cytology = the study of cells. Nonliving Levels. Organization Levels of Life. Living Levels 11/14/13. More Living Levels
Cells Cytology = the study of cells What Are the Main Characteristics of organisms? 1. Made of CELLS 2. Require ENERGY (food) 3. REPRODUCE (species) 4. Maintain HOMEOSTASIS 5. ORGANIZED 6. RESPOND to environment
More informationAsk yourself. Chapter 3 Cell Structure and Function. Examples of Cells. A is cell the smallest unit that is capable of performing life functions.
Chapter 3 Cell Structure and Function Ask yourself If you were a scientist living in the 1500s, what kind of questions would you ask yourself if you were the one to discover cells? Let me think. Cell Video
More informationChapter 4. Table of Contents. Section 1 The History of Cell Biology. Section 2 Introduction to Cells. Section 3 Cell Organelles and Features
Cell Structure and Function Table of Contents Section 1 The History of Cell Biology Section 2 Introduction to Cells Section 3 Cell Organelles and Features Section 4 Unique Features of Plant Cells Section
More informationAnimal Cell Organelles. Plant Cell. Organelle. Cell Wall. Chloroplasts. Vacuole
Cell Biology Higher Electron vs Light Microscope Light use light and lenses to magnify specimen Electron use a beam of electrons to form an image Electron higher magnification and higher resolution Electron
More informationREVIEW 2: CELLS & CELL DIVISION UNIT. A. Top 10 If you learned anything from this unit, you should have learned:
Period Date REVIEW 2: CELLS & CELL DIVISION UNIT A. Top 10 If you learned anything from this unit, you should have learned: 1. Prokaryotes vs. eukaryotes No internal membranes vs. membrane-bound organelles
More informationMicroscope History Robert Hooke
1 Microscope History Robert Hooke First described cells in 1665. He viewed thin slices of cork and compared the boxy partitions he observed to the cells (small rooms) in a monastery. (1635 1702) 2 Microscope
More informationCell Theory. The cell is the basic unit of structure and function for all living things, but no one knew they existed before the 17 th century!
Cell Notes Cell Theory All living organisms are made of. cells The cell is the basic unit of structure and function for all living things, but no one knew they existed before the 17 th century! In 1665,
More informationMitochondria. Nickname: Batteries. bean shaped. Structure: Function: provides energy for the cell (powerhouse of the cell)
The Cell #1 Mitochondria Mitochondria Nickname: Batteries Structure: bean shaped Function: provides energy for the cell (powerhouse of the cell) Mitochondria #2 Nucleus Nucleus Nickname: Structure: Function:
More informationCell Structure and Function
Cell Structure and Function Cell size comparison Animal cell Bacterial cell What jobs do cells have to do for an organism to live Gas exchange CO 2 & O 2 Eat (take in & digest food) Make energy ATP Build
More informationB I O. 1. B I O A N A L Y Z E T H E C E L L A S A L I V I N G S Y S T E M.
Goal 1 B I O. 1. 1 U N D E R S T A N D T H E R E L A T I O N S H I P B E T W E E N T H E S T R U C T U R E S A N D F U N C T I O N S O F C E L L S A N D T H E I R O R G A N E L L E S. B I O. 1. 2 A N A
More informationII. Eukaryotic Cell Structure A. Boundaries 1. plasma membrane a. serves as a boundary b/w the cell and its environment b. controls movement of
I. History of the cell theory A. Anton van Leeuwenhoek (1600s) - dutch lens maker could see things with his lenses that were invisible to the naked eye - developed the simple microscope B. Robert Hooke
More informationNAME: PERIOD: The Cell and Its Functions
NAME: PERIOD: The Cell and Its Functions Directions: Using your notes and book as a guide, complete the following questions to review everything we have learned about cells, their parts, and any functions
More informationStation What are the statements to the cell theory? 2. What are the two categories of cells?
Station 1 1. What are the statements to the cell theory? 2. What are the two categories of cells? Station 2 3. List the main difference between prokaryotes and eukaryotes? 4. What are the similarities
More informationPlant and animal cells (eukaryotic cells) have a cell membrane, cytoplasm and genetic material enclosed in a nucleus.
4.1 Cell biology Cells are the basic unit of all forms of life. In this section we explore how structural differences between types of cells enables them to perform specific functions within the organism.
More informationBiology 1 Notebook. Review Answers Pages 17 -?
Biology 1 Notebook Review Answers Pages 17 -? The History of Cell Studies 1. Robert Hook (1665) used a microscope to examine a thin slice of cork. The little boxes he observed reminded him of the small
More informationName # Class Date Regents Review: Cells & Cell Transport
Name # Class Date Regents Review: Cells & Cell Transport 1. All of the following are true regarding cells except? A) All cells have genetic material B) All cells have cell walls C) All cells have plasma
More informationBasic Structure of a Cell
Basic Structure of a Cell Introduction to Cells Cells are the basic units of organisms Cells can only be observed under microscope Basic types of cells: Animal Cell Plant Cell Bacterial Cell 1 2 Number
More informationTopic 3: Cells Ch. 6. Microscopes pp Microscopes. Microscopes. Microscopes. Microscopes
Topic 3: Cells Ch. 6 -All life is composed of cells and all cells have a plasma membrane, cytoplasm, and DNA. pp.105-107 - The development of the microscope was the key to understanding that all living
More informationCells. Every organism is made up of a cell or many cells Humans have ~ 100 TRILLION cells each!
Cells Every organism is made up of a cell or many cells Humans have ~ 100 TRILLION cells each! History 1660 s Microscopes developed Allowed for the observation of cells for the first time Robert Hooke
More informationContains ribosomes attached to the endoplasmic reticulum. Genetic material consists of linear chromosomes. Diameter of the cell is 1 m
1. (a) Complete each box in the table, which compares a prokaryotic and a eukaryotic cell, with a tick if the statement is correct or a cross if it is incorrect. Prokaryotic cell Eukaryotic cell Contains
More informationCells and Their Organelles
Mr. Ulrich Regents Biology Name:.. Cells and Their Organelles The cell is the basic unit of life. The following is a glossary of animal cell terms. All cells are surrounded by a cell membrane. The cell
More informationCells and Their Organelles
Cells and Their Organelles The cell is the basic unit of life. The following is a glossary of animal cell terms. All cells are surrounded by a cell membrane. The cell membrane is semipermeable, allowing
More informationBiology. Mrs. Michaelsen. Types of cells. Cells & Cell Organelles. Cell size comparison. The Cell. Doing Life s Work. Hooke first viewed cork 1600 s
Types of cells bacteria cells Prokaryote - no organelles Cells & Cell Organelles Doing Life s Work Eukaryotes - organelles animal cells plant cells Cell size comparison Animal cell Bacterial cell most
More informationCell Organelles. 2. Cells are the basic unit of organization in an organism Cells tissues organ organ system organism
Cell Organelles What are some of the differences you see between these two cells? A. Cell Theory 1. All organisms are made up of one or more cells 2. Cells are the basic unit of organization in an organism
More information5. The cells in the liver that detoxify poison substances contain lots of a. smooth ER b. rough ER c. Golgi apparatus d. lysosomes e.
Chapter 7 practice 1. What scientist originally came up with the term "cell"? a. von Leeuwenhoek d. Watson b. Hooke e. Virchow c. van der Waals 2. When you wish to look at the coat of a virus on the surface
More informationWarm-Up Pairs Discuss the diagram What Where Which Why
Warm-Up In Pairs Discuss the diagram What is it? Where does it come from? Which parts can you label? (in pencil) Why do you think you will learn about it? 5 m Eukaryote: Organelles, Structure and Function
More informationCell Review: Day "Pseudopodia" literally means? a) False feet b) True motion c) False motion d) True feet
Cell Review: Day 1 1. "Pseudopodia" literally means? a) False feet b) True motion c) False motion d) True feet Cell Review: Day 1 2. What is the primary method of movement for Euglena? a) Flagella b) Cilia
More informationhttp://koning.ecsu.ctstateu.edu/cell/cell.html 4A: Students will compare and contrast prokaryotic and eukaryotic cells Robert Hooke (1665) Used a compound microscope to look at thin slices of cork (oak
More informationCell Structure: What cells are made of. Can you pick out the cells from this picture?
Cell Structure: What cells are made of Can you pick out the cells from this picture? Review of the cell theory Microscope was developed 1610. Anton van Leeuwenhoek saw living things in pond water. 1677
More informationCell Structure and Function
Cell Structure and Function Prokaryote vs. Eukaryote Prokaryotic cells: Pro- Before, Karyot- Center or Nucleus Very Basic Cells with no membrane bound organelles. DNA is not separate from the rest of the
More informationChemistry of Life Cells & Bioprocesses CRT Review
Chemistry of Life Cells & Bioprocesses CRT Review Chapter 2: The Chemistry of Life macromolecules - The four types of macromolecules are carbohydrates, lipids, nucleic acids, and proteins Types of Macromolecules
More informationHow many lessons is it?
Science Unit Learning Summary Content Eukaryotes and Prokaryotes Cells are the basic unit of all life forms. A eukaryotic cell contains genetic material enclosed within a nucleus. Plant and animal cells
More informationCells. 1. The Cell Theory
Cells 1. The Cell Theory Biologists started looking at the structure of animals and plants and found tiny box-like structures making up the tissues which were called cells. As more living organisms were
More informationPlease be aware that any form of plagiarism will result in penalties consistent with the CCPS Academic Dishonesty Policy.
AP Biology Summer Assignment GENERAL DIRECTIONS: You can use e- textbook (Campbell Biology, AP Edition 9e) to find answers to the following questions. The instructions to register are already given to
More informationThe cell. The cell theory. So what is a cell? 9/20/2010. Chapter 3
The cell Chapter 3 The cell theory all living organisms are made up of one or more cells, and all cells arise from other, pre-existing cells So what is a cell? The most basic unit of any organism The smallest
More informationCHARACTERISTICS OF LIFE ORGANIZATION OF LIFE CELL THEORY TIMELINE
CHARACTERISTICS OF LIFE 1. composed of cells either uni/multi 2. reproduce sexual and/or asexual 3. contain DNA in cells 4. grow and develop 5. use material/energy in metabolic reactions 6. respond to
More information