Learning Objective. Chapter 1: Introduction to Biology. Class Exercise: What does it mean to be living? Properties of Life
|
|
- Leslie Watkins
- 6 years ago
- Views:
Transcription
1 1 2 Introduction to Biology Learning Objective Chapter 1: Introduction to Biology Describe the properties and levels of organization of living things 1.1: Themes and Concepts of Biology 1.2: The Process of Science 3 4 Class Exercise: What does it mean to be living? Are you alive? Is fire alive? Is an egg alive? Is a car alive? Is a seed alive? Is a refrigerator alive? Order Sensitivity or response to stimuli Reproduction Adaptation Growth and development Regulation Homeostasis Energy Processing
2 5 6 Order Order is the opposite of random Order occurs when there is a specific arrangement of items Or in other words, order occurs when items have a specific relationship to other items. A toad represents a highly organized structure consisting of cells which are composed of an organized arrangement of molecules Tissues which are composed of an organized arrangement of cells Organs which are composed of an organized arrangement of tissues organ systems which are composed of an organized arrangement of organs A toad is made up of the same stuff (atoms and molecules) as it s nonliving environment but the parts are arranged in a very precise way and thus is significantly more ordered than its nonliving surroundings Sensitivity or response to stimuli Stimuli are particular states or conditions in the environment that cause an organism to react in a particular way While lots of nonliving things can be moved by physical forces and in a sense react to the environment a rock on a cliff can fall, sand can be blown by wind, etc, Unlike nonliving things, living things can move toward or away from something (or transport stuff into or out of itself) that is not itself the primary source of energy Plants grow toward light however, light in general does not cause non living things to move toward the light source» In other words light is not pulling plants toward it The leaves of this sensitive plant (Mimosa pudica) will instantly droop and fold when touched. After a few minutes, the plant returns to its normal state video 7 8 Reproduction Reproduction is the process of making more of the same kind of thing All living organisms contain the information required to make more of that type of organism This information is known as the genetic material All living things use DNA as the way to store genetic information (DNA is the genetic material) DNA stores the instructions to make all the parts of the organism from building blocks obtained from the environment Not all organisms reproduce but they have the information and all the machinery required to reproduce Adaptation As an environment changes, natural selection causes the characteristics of the individuals in a population to track those changes If flowers get deeper, those hummingbirds with naturally longer beaks will survive and reproduce making offspring sharing similarly long beaks shorter beak hummingbirds will be less likely to get the nectar food source from deep flowers and more likely to die before producing any offspring Similarly, if the climate gets colder, polar bears with better insulation (fur and fat) will be more likely to survive and reproduce than those with less insulation. The next generation would then inherit the better insulation In both cases above, as the environment changes, the next generation has characteristics that are better in that environment (longer beaks; more insulation). This is adaptation
3 9 10 Growth and development All organisms go through stages that are simpler and/or smaller to those that are larger and/or more complex as they acquire material from their environment Regulation All living things control processes that affect how it functions Processes are started or stopped, increased or decreased based on the requirements of the organism Certain regulated processes lead to homeostasis (sweat production, muscle shivering) but not all do Cell division is a highly regulated process but doesn t maintain any stable internal condition Homeostasis: process of maintaining an internal environment that is relatively stable even when the external environment changes significantly Examples: ph of fluids, water/salt balance, body temperature, etc. Homeostasis is a result of regulating particular processes. For example, in the homeostasis of body temperature, sweat production is regulated to cool the body when hot it is turned on when the body temperature of humans increases slightly and turned off when body temperature is normal or low. However, when overheated the production of sweat lowers the body temperature which maintains a stable body temperature (homeostasis) Energy processing All organisms obtain and use energy from the environment Energy is used to maintain order by repairing structures Energy is used to move toward or away from stimuli Energy is used to acquire material from the environment to grow and develop Energy is used to maintain homeostasis
4 Hierarchy of properties of life All of the properties of life can be thought of as a consequence of just two main properties: maintaining order and reproducing Order Requires energy to keep order (energy processing) For example, when things fall apart, energy and resources (molecules, atoms) are needed to put back together Need to get energy and resources from environment (respond to stimuli) Function determined by structure, structures are specific arrangements of stuff (order) To function properly, processes need to keep important stuff inside and bad stuff outside (a type of homeostasis) A process needs to be turned on and off depending on particular conditions (regulation, also response to stimuli) For example, we eat to gain energy and resources from the environment, however, we turn on eating behavior some of the time and turn it off other times (eating is regulated).» This is not exactly homeostasis but related to it. Eating is regulated because it is turned off and on under certain conditions. However, it is often turned on to maintain homeostasis of blood sugar levels, though you can eat even when blood sugar is high Reproduction based on a inherited information After reproduction, organisms need to build themselves up from something simpler (growth and development) For example before a bacteria divides it acquires more stuff from the environment (growth) and after it divides, it is smaller and simpler than the bacteria it came from (even if only slightly simpler) All sexually reproducing multicellular organism (most animals, plants and fungi) start off as a single cell (a fertilized egg) For anything that reproduces, if not all of the offspring can survive and reproduce themselves, then this leads to natural selection which causes adaptation. (more on this later) The simplest structure that has all the properties of life is a cell Cells 15 Cells 16 Cells are small most cells can only be observed under a microscope Robert Hooke first described cells in 1665 Coined the term cell after looking at cork under a microscope and seeing structures looking like monastery cells Cells are fundamentally important to life All living things are composed of one or more cells Matthias Schleiden in 1838 recognized that cells were fundamental to plant composition Theodor Schwann in 1839 reported that all animal tissues are also composed of cells
5 Cells Unified cell theory states the importance of cells to life 17 What is a Cell? A cell is basically a watery sac of chemicals that has all the properties of life. The surface of the sac is a thin oily layer that keeps the watery stuff in and other stuff out It contains all the information needed to build new cells All organisms are composed of one or more cells 2. Cells are the smallest/simplest living things, the basic unit of life 3. Cells arise only by division of previously existing cells The basic components of all cells Has a cell membrane (the thin oily layer that forms the outside of the watery sac) It carries genetic information in the form of DNA It contains ribosomes to use the genetic information to assemble proteins It contains cytosol/cytoplasm which is the watery gel like material on the inside of the cell where all the chemistry of life occurs It contains proteins that do work and carry out the cell functions Something must have ALLthe characteristics of life to be considered living The simplest collection of matter that exhibits all of the properties of life is the cell A virus is not a cell but shares many of the properties of life but not all, Thus, viruses are not alive They are simply genetic information in a protein box They do not have the biological machinery to make anything Viruses basically inject genetic information into cells and hijack the cells machinery to make more virus parts and virus particles Bacteria are organisms composed of a single prokaryotic cell. Each bacteria exhibits all of the properties of life The simplest living thing known is a bacteria The first life on earth were likely bacteria All living things share a common ancestor that was a bacteria but diversified and became more complex through evolution Proteins RNA 19 Viruses Are Not Alive Proteins Viruses are often considered on the cusp of life because They are ordered (complex and specific arrangement of molecules) They have genetic material The population of viruses can adapt and evolve!!!! They can reproduce but not without hijacking a hosts biological machinery! Viruses do not: Reproduce independently Have the ability to use energy to maintain order Maintain homeostasis (no internal regulation) Grow and develop Respond to environmental stimuli (mostly) Binding to a host cell can trigger events that result in type of reponse in a virus, but it is very limited Influenza virus RNA 20
6 21 All Living Things Are Composed of Cells RNA Viruses Are Not Alive All Living Things Are Composed of Cells Viruses are not living machines, they are just inactive information in a box Each cell is a small container of chemicals and water wrapped in a thin oily membrane that can perform all the necessary functions to maintain life. Proteins At the core of all viruses is just genetic material (can be RNA or DNA) in a protein container We can distinguish two major types of cells: Some viruses can be much more complex in the type of container the genetic material is in. The prokaryotic cell is Once a virus genetic material gets inside a cell, the cell s machinery is hijacked becoming a virus factory Envelope protein simpler and usually smaller and characteristic of bacteria. The eukaryotic cell is Envelope (membrane) Capsid (protein) Enzyme (protein) Influenza virus Ebola virus RNA (genetic material) Human immunodeficiency virus (HIV) 23 Prokaryotic cell (bacterium) Eukaryotic cell (animal) Smaller Simpler structure DNA concentrated in Larger More complex Organelles nucleoid region, which is not enclosed by membrane No membrane bound organelles 22 structure DNA enclosed by membrane (Nucleus) Contains many types of organelles Nucleoid region Colorized TEM Nucleus 1 1 subdivided by internal membranes into different functional compartments called organelles and found in plants and animals.
Biology Slide 1 of 31
Biology 1 of 31 2 of 31 The Discovery of the Cell The Discovery of the Cell Because there were no instruments to make cells visible, the existence of cells was unknown for most of human history. This changed
More informationWhat in the Cell is Going On?
What in the Cell is Going On? Robert Hooke naturalist, philosopher, inventor, architect... (July 18, 1635 - March 3, 1703) In 1665 Robert Hooke publishes his book, Micrographia, which contains his drawings
More informationStudy of Biology. copyright cmassengale
Study of Biology 1 What is Biology? Biology is the study of all living things Living things are called organisms Organisms include bacteria, protists, fungi, plants, & animals 2 All Living Things Share
More informationIntroduction: Biology Today
Chapter 1 Introduction: Biology Today 1 THE SCOPE OF LIFE The Properties of Life Biology is the scientific study of life. What is life? The study of biology encompasses a wide scale of size and a huge
More informationSTEMscopedia: CELL STRUCTURES AND HOMEOSTASIS B1A
Reflect B1A Have you wondered why you shiver in the cold? Or maybe why your stomach gets upset after eating something bad? These and many other reactions are ways your body is responding to a change in
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 informationCell Structure and Function. Chapter 4
Cell Structure and Function Chapter 4 Chapter 4: Cell Structure Section 1: The History of Cell Biology Section 2: Introduction to Cells Section 3: Cell Organelles and Features Section 4: Unique Features
More informationChapter: Life's Structure and Classification
Table of Contents Chapter: Life's Structure and Classification Section 1: Living Things 1- What is an organism? Any living thing is called an organism. Organisms vary in size: 1)one-celled or unicellular
More informationChapter 4 Cells: The Basic Units of Life The Big Idea All organisms are composed of one or more cells.
Chapter 4 Cells: The Basic Units of Life The Big Idea All organisms are composed of one or more cells. Section 1 The Characteristics of Cells Key Concept Cells function similarly in all living organisms.
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 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 informationThe Discovery of the Cell
The Discovery of the Cell The Discovery of the Cell Because there were no instruments to make cells visible, the existence of cells was unknown for most of human history. This changed with the invention
More informationMission to Mars Day 4. Defining Life
Mission to Mars Day 4 Defining Life Remember this quote? Mark Watney: If the oxygenator breaks down, I'll suffocate. If the water reclaimer breaks down, I'll die of thirst. If the hab breaches, I'll just
More informationUnit 1 ~ Scientific Reasoning & Logic
Unit 1 ~ Scientific Reasoning & Logic A) An Introduction to Biology What is the study of Biology? Every thing can be classified into one of 3 groups... o _ o _ o _ Why do people study it?... Or better
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 informationprotein synthesis cell theory Centrioles specialization. unicellular ribosomes. mitochondria cell interdependence prokaryotes
All cells must generate proteins. Cells make protein through a process called protein synthesis All living things are made of cells, Cells are the basic units of structure and function in all organisms,
More informationCell Biology. What is a cell? What is a cell?
Cell Biology What is a cell? Cell = basic unit of life A cell is the smallest 'thing' that has all of the characteristics of life made of cells maintains homeostasis can reproduce uses energy grows is
More informationHow do we define what it means to be alive?
How do we define what it means to be alive? Defining Life-7 Characteristics of Life There is no universal definition of life. To define life in unequivocal terms is still a challenge for scientists. Conventional
More informationChapter 4 A Tour of the Cell. The human body is made up of trillions of cells many of which are specialized - Muscle cells
Chapter 4 A Tour of the Cell State Standards Standard 1.c. Standard 1.e. Introduction to Cells Organisms are either - Single-celled, such as - Multicelled, such as The human body is made up of trillions
More informationLIFE SCIENCE CHAPTER 3 FLASHCARDS
LIFE SCIENCE CHAPTER 3 FLASHCARDS Human beings are A. machines. B. organisms. C. systems. D. protists. One benefit of being a large organism is that you have A. larger cells. B. simpler functions. C. fewer
More informationTopic 1.1 Characteristics of Living Things
Science 8 Unit 1 Worksheet Topic 1.1 Characteristics of Living Things DIRECTIONS: In the textbook, read Unit 1 Topics 1.1, 1.2, and 1.3. Once you are done, answer the questions below. To check your understanding
More informationCHAPTER 1 BIOLOGY THE SCIENCE OF LIFE
CHAPTER 1 BIOLOGY THE SCIENCE OF LIFE BIOLOGICAL THEMES 1. Cell Structure & Function cell is the basic unit of life all organisms are composed of at least one cell Unicellular single celled ; bacteria,
More informationLecture Outline. Defining life by properties of being alive (7)
Lecture Outline Defining life by properties of being alive (7) Order of structural hierarchy levels of the living world Ascending/up & descending/down emergent properties Unifying themes Form and function
More informationSlide 1. Slide 2. Slide 3. Chapter 4 A Tour of the Cell. State Standards. Introduction to Cells. Standard 1.c. Standard 1.e.
Slide 1 Chapter 4 A Tour of the Cell Slide 2 State Standards Standard 1.c. Standard 1.e. Slide 3 Introduction to Cells Organisms are either - Single-celled, such as - Multicelled, such as The human body
More informationUnit One: The Science of Biology
Unit One: The Science of Biology 1 The process by which an organism reaches death In an organism, a condition in which there is reproduction, growth, development, metabolism, use of energy, excretion,
More informationCell Structure and Function
Chapter 5 Cell Structure and Function Can you name something that you know exists even though you can t see it with your eyes? A drop of pond water has tiny swimming organisms and small bits of plant material,
More informationBiology: Life on Earth
Biology: Life on Earth Eighth Edition Lecture for Chapter 1 An Introduction to Life on Earth Section 1.3 Outline 1.3 What Are the Characteristics of Living Things? Living Things Are Both Complex, Organized,
More informationWhat Is Biology? Biologists Study? The study of living things. Characteristics Classifications Interactions between organisms Health & Disease
What Is Biology? The study of living things. Biologists Study? Characteristics Classifications Interactions between organisms Health & Disease Goal of Science To investigate To understand To explain To
More informationAll Living Things Share Common Characteristics 1. Living Things are Composed of Cells: Single-cell organisms have everything they need to be self-sufficient. In multicellular organisms, some cells do only
More informationThe Science of Life. Introduction to Biology
The Science of Life Introduction to Biology What is Biology Bio = life logos = knowledge many branches - different things to study in biology Botany study of plants all types of plants - trees, flowers,
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 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 information6.12A: You will understand that all organisms are composed of one or more cells.
TEKS: 6.12A, B 6.12A: You will understand that all organisms are composed of one or more cells. Purpose: You will get to see and identify the smallest unit of life! As well as learn about who discovered
More informationChapter Test A. It s Alive!! Or Is It? MULTIPLE CHOICE
Assessment Chapter Test A It s Alive!! Or Is It? MULTIPLE CHOICE Write the letter of the correct answer in the space provided. 1. Which of the following is NOT a characteristic that all organisms share?
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 informationLife is Cellular. At the cellular level, what is the difference between animal cells and bacterial cells? How do microscopes work?
Life is Cellular At the cellular level, what is the difference between animal cells and bacterial cells? How do microscopes work? Objectives 8a) I can state the cell theory and distinguish between prokaryotes
More informationForm a Hypothesis. Variables in an Experiment Dependent Variable what is being measured (data) Form a Hypothesis 2. Form a Hypothesis 3 15:03 DRY MIX
Scientific Method 1. Ask a question (Make observation) 2. Do some research 3. Form a Hypothesis MUST BE TESTABLE!! A possible explanation for a phenomenon. 4. Test Hypothesis/collect data (experiment time!)
More informationName Hour. Section 7-1 Life Is Cellular (pages )
Name Hour Section 7-1 Life Is Cellular (pages 169-173) Introduction (page 169) 1. What is the structure that makes up every living thing? The Discovery of the Cell (pages 169-170) 2. What was Anton van
More informationThe Cell The building blocks of life
The Cell The building blocks of life Cells are not the smallest structure that make up living organisms. They are merely the smallest functional units. Cells themselves contain smaller units called o Tiny
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 informationWhat is a cell? (*Know the parts of the microscope!)
Cells What is a cell? All living things have cells whether it is one or many! Therefore, a cell is the basic unit of all life. The invention of the microscope was pivotal to the study of cell biology.
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 informationAll living things are made of cells
All about CELLS! 12F recognize that according to cell theory all organisms are composed of cells and cells carry on similar functions such as extracting energy from food to sustain life 12C recognize levels
More informationA.P. Biology Lecture Notes Unit 1A - Themes of Life
A.P. Biology Lecture Notes Unit 1A - Themes of Life I. Why study biology? A. Life is attractive, diverse, and interesting. B. The study of biology is enormous in scope C. Organisms span size scales from
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 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 informationBiology Unit 1 Warm Ups. Mrs. Hilliard
Biology Unit 1 Warm Ups Mrs. Hilliard Communication in Science Choose one of the three topics to write a detailed procedure for. 1. How to make a peanut butter and jelly sandwich. 2. How to brush your
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 informationHow do we define what it means to be alive?
How do we define what it means to be alive? Defining Life There is no universal definition of life. To define life in unequivocal terms is still a challenge for scientists. Conventional definition: must
More informationCharacteristics of Living Things
Characteristics of Living Things All Living Things Are made up of units called cells A cell is the smallest unit of an organism that can be considered alive Types of Cellular Organisms Unicellular Uni
More informationBio-CP Chapter 7 Cell Notes
Bio-CP Chapter 7 Cell Notes I. Cell = Building block of all living organisms A. Robert Hooke (1665) observed cork under a crude microscope 1. He called the boxes cells because they looked like little rooms
More informationDiscovery of the Cell
Cells Chapter 4 Discovery of the Cell 1665 Robert Hooke used a microscope to examine a piece of cork. He saw little boxes in the cork and called them cells. 1673 Anton van Leeuwenhoek was the first person
More informationCharacteristics of Life
Name Date Period Score Characteristics of Life READ AND HILITE THE MAIN IDEAS IN EACH PASSAGE THEN ANSWER THE QUESTIONS. Most people feel confident that they could identify a living thing from a nonliving
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 informationBiology I. Chapter 7
Biology I Chapter 7 Interest Grabber NOTEBOOK #1 Are All Cells Alike? All living things are made up of cells. Some organisms are composed of only one cell. Other organisms are made up of many cells. 1.
More informationDo NOT write on this test. Thank you!
Organization and Development of Living Organisms (SC.6.L.14.1,2,3,4 and 5) 1. The diagram below represents a plant cell. Letter X represents a structure in the cell. Which structure is represented by X?
More informationChapter 1. How Do Biologists Study Life?
Chapter 1 How Do Biologists Study Life? Biology is the study of life Biologists ask questions about all aspects of living organisms Bios logos means a discourse on life in Greek Biology has many sub-disciplines
More information7.1 Life is Cellular. Robert Hooke: Anton van Leeuwenhoek: The smallest unit of any organism- the cell. Robert Hooke
7.1 Life is Cellular Sunday, December 16, 2012 1:07 PM Vocabulary: Cell: basic unit of all forms of life Cell theory: fundamental concept of biology that states that all living things are composed of cells;
More information02/02/ Living things are organized. Analyze the functional inter-relationship of cell structures. Learning Outcome B1
Analyze the functional inter-relationship of cell structures Learning Outcome B1 Describe the following cell structures and their functions: Cell membrane Cell wall Chloroplast Cytoskeleton Cytoplasm Golgi
More informationName Date Period Handout A: Characteristics of Life
Name Date Period Handout A: Characteristics of Life Directions: 1. Read and highlight the main ideas in each passage. 2. Circle Key vocabulary 3. Answer the questions below each passage. Most people feel
More informationAll living things share the characteristics of life.
Section 1: All living things share the characteristics of life. K What I Know W What I Want to Find Out L What I Learned Essential Questions What is biology? What are possible benefits of studying biology?
More informationCellular basis of life History of cell Biology Year Name of the scientist Importance
Cellular basis of life History of cell Biology Year Name of the scientist Importance 1590 Jansen 1650 Anton van Leeuwenhoek 1665 Robert Hooke 1831 Matthias Schleiden 1831 Theodore Schwann 1855 Rudolf Virchow
More informationCh 7: Cell Structure and Functions. AP Biology
Ch 7: Cell Structure and Functions AP Biology The Cell Theory 1. All living things are made of cells. 2. New cells come from existing cells. 3. Cells are the basic units of structure and function of living
More information8.1 Life is cellular
8.1 Life is cellular Early Microscopes In 1665, Englishman Robert Hooke used a microscope to look at a slice of cork. Cork was made of tiny, empty chambers that Hooke called cells. Anton van Leeuwenhoek
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 information4th Six Weeks Exam Review Cell Structure and Function
Mrs. Keadle H Science 4th Six Weeks Exam Review Questions for your 4th six weeks exam will be similar to these questions. Make sure you understand the question and why the answer reviewed is correct. The
More informationCharacteristics of Life
Characteristics of Life All living things share some basic characteristics: 1. Organization 2. Movement 3. Made up of cells 4. Reproduce 5. Grow and / or develop 6. Obtain and use energy 7. Respond to
More informationBIOLOGY 111. CHAPTER 1: An Introduction to the Science of Life
BIOLOGY 111 CHAPTER 1: An Introduction to the Science of Life An Introduction to the Science of Life: Chapter Learning Outcomes 1.1) Describe the properties of life common to all living things. (Module
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 informationBasic Biological Principles
Basic Biological Principles Use the diagram below to answer question 1. Moth Life Cycle larva egg pupa Adult 1. Which characteristic of life is best shown by this diagram? A. DNA is the genetic code in
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 informationBiology Cell Test. Name: Class: Date: ID: A. Multiple Choice Identify the choice that best completes the statement or answers the question.
Class: Date: Biology Cell Test Multiple Choice Identify the choice that best completes the statement or answers the question. 1, Who. wasone of the first people to-identify and seecorkeells? -,- ; -...
More information9/19/2016 CHAPTER 1: THE STUDY OF LIFE SECTION 1: INTRODUCTION TO THE SCIENCE OF LIFE BIOLOGY
CHAPTER 1: THE STUDY OF LIFE SECTION 1: INTRODUCTION TO BIOLOGY Ms. Diana THE SCIENCE OF LIFE Biology is the study of living things. In biology, you study the origins and history of life and once-living
More informationChapter 3. Chapter 3. Bellringer. Objectives. Chapter 3. Chapter 3. Vocabulary. Objectives, continued
Bellringer Why do you think cells weren t discovered until 1665? What invention do you think made their discovery possible? Do you think people can ever see cells with the naked eye? Explain your answer.
More informationBiology Test 2 The Cell. For questions 1 15, choose ONLY ONE correct answer and fill in that choice on your Scantron form.
Name Block Date Biology Test 2 The Cell For questions 1 15, choose ONLY ONE correct answer and fill in that choice on your Scantron form. 1. Which pair of structures best shows that plant cells have functions
More informationChapter 7: Cell Structure and Function 7.1: Life is Cellular
Chapter 7: Cell Structure and Function 7.1: Life is Cellular Key Questions: 1) What is the cell theory? 2) How do microscopes work? 3) How are prokaryotic and eukaryotic cells different? THINK ABOUT IT
More informationIntroduction to Biology Lecture 1
Introduction to Biology Lecture 1 Aspects of Science Science has two aspects. It is both (1) a body of knowledge and (2) a method used for discovering new knowledge. What is biology? The word biology comes
More informationDr. Dina A. A. Hassan Associate Professor, Pharmacology
Cytology Dr. Dina A. A. Hassan Associate Professor, Pharmacology Email: da.hassan@psau.edu.sa Cells All living things are made up of cells Basic building blocks of life It is the smallest functional and
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 informationDirected Reading A. Section: Characteristics of Living Things LIVING THINGS HAVE CELLS. a(n). LIVING THINGS SENSE AND RESPOND TO CHANGE
Skills Worksheet Directed Reading A Section: Characteristics of Living Things LIVING THINGS HAVE CELLS 1. The smallest unit that can perform all life processes is called a(n). 2. All living things are
More informationCharacteristics of Life
Name Date Block Honors Biology Mrs. Flannery Characteristics of Life READ AND UNDERLINE THE MAIN IDEAS IN EACH PASSAGE THEN ANSWER THE QUESTIONS. Most people feel confident that they could identify a living
More informationCell Structure, Function & Ultrastructure
Cell Structure, Function & Ultrastructure Learning Objectives 2.1.2 Components of the cell as seen under the light microscope and their functions. Cell Structure and Function 1. Plant cells: cell wall,
More informationBIOLOGY Cell Review Notes (source: SW Biology 11)
BIOLOGY Cell Review Notes (source: SW Biology 11) CELL STRUCTURE, FUNCTION & PROCESS Both living and nonliving things are composed of molecules made from chemical elements such as carbon, hydrogen, oxygen,
More informationUnit 3: Cells. Objective: To be able to compare and contrast the differences between Prokaryotic and Eukaryotic Cells.
Unit 3: Cells Objective: To be able to compare and contrast the differences between Prokaryotic and Eukaryotic Cells. The Cell Theory All living things are composed of cells (unicellular or multicellular).
More informationHow to use this book. How the book is organised. Answering questions. Learning and using the terminology. Developing skills
How to use this book Welcome to the beginning of your Human and Social Biology course! We hope that you really enjoy your course, and that this book will help you to understand your work, and to do well
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 Characteristics of Life. AP Biology Notes: #1
The Characteristics of Life AP Biology Notes: #1 Life s Diversity & Unity Life has extensive diversity. Despite its diversity, all living things are composed of the same chemical elements that make-up
More informationCELL THEORY & FUNCTION
UNIT 1- THE CELL CELL THEORY & FUNCTION A Word From Bill Record your observations about the picture to the right. What do you think you are you looking at? Describe the structure with as much detail
More informationBSC 1010C Biology I. Themes in the Study of Life Chapter 1
BSC 1010C Biology I Themes in the Study of Life Chapter 1 Objectives Distinguish among the three domains of life. Distinguish between the Levels of Biological Organization. Note the differences in the
More informationLecture one Introduction to the Cell Biology
Lecture one Introduction to the Cell Biology INTRODUCTION TO THE CELL Both living and non-living things are composed of molecules made from chemical elements such as Carbon, Hydrogen, Oxygen, and Nitrogen.
More informationVan Leeuwenhoek. 1 st crude microscope made by the Dutchman
The Cell History of Cells In 1665, English scientist Robert Hooke used the first compound light microscope to see plant tissues He viewed several thin slices of cork He called the small chambers within
More informationSTUDY GUIDE SECTION 4-1 The History of Cell Biology
STUDY GUIDE SECTION 4-1 The History of Cell Biology Name Period Date Multiple Choice-Write the correct letter in the blank. 1. One early piece of evidence supporting the cell theory was the observation
More informationWhat are Cells? How is this bacterium similar to a human? organism: a living thing. The cell is the basic unit of life.
Have you ever wondered how people are similar to bacteria? It may seem like a silly question. After all, humans and bacteria are very different in size and complexity. Yet scientists have learned that
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 THEORY & FUNCTION
CELL THEORY & FUNCTION DISCOVERY OF THE CELL Can t see cells, so who knew they existed? Discovered after the microscope was invented. Mid 1600s when scientists began using microscopes Robert Hooke
More informationChapter 1. An Introduction To Life On Earth
Chapter 1 An Introduction To Life On Earth John Klock, MA, MS 16 th year teaching life sciences 5 colleges (LBCC, OSU, Univ. of Maryland,..) Two children 15 years abroad, climbing (Mt.Mckinley) traveling
More informationJoy of Science Experience the evolution of the Universe, Earth and Life
Joy of Science Experience the evolution of the Universe, Earth and Life Review Introduction Main contents Group discussions Unless otherwise noted, pictures are taken from wikipedia.org Review 1 Organic
More informationCell day 1.notebook September 01, Study the picture of a prokaryotic cell on page 162 in a textbook and the two eukaryotic cells on page 163.
BellRinger: Log into a clicker! Study the picture of a prokaryotic cell on page 162 in a textbook and the two eukaryotic cells on page 163. Compare them and list similarities and differences. Sep 11 11:00
More informationGrade 7 Science Curriculum Maps
Grade 7 Science Curriculum Maps Unit 1: Cells The Basic Unit of Life Unit 2: The Cell in Action Unit 3: Genes and DNA Unit 4: Heredity Unit 5: Evolution Unit 6: It s Alive! Or is it?! Unit 7: Bacteria
More information