Fertilization. Key Concepts. Introduction. Activation Changes Juxtaposition Acrosome Syngamy Membrane Potential Cortical Reaction Electrophysiology
|
|
- Darleen Sullivan
- 6 years ago
- Views:
Transcription
1 Fertilization 1 Activation Changes Juxtaposition Acrosome Syngamy Membrane Potential Cortical Reaction Electrophysiology Key Concepts 2 Sexual Reproduction Fertilization Syngamy Conjugation Parthenogenesis Introduction 3
2 Inhibition Fertilization Artificial activation Parthenogenesis Activation 4 Physiological Changes membrane potential increase in Ca ++ increase in ph increase in permeability increase in viscosity increase in proteolytic enzymes start protein synthesis start DNA synthesis 5 Sperm morphology Surface interactions Egg cytoplasm Morphological Changes 6
3 Juxaposition of Gametes Chemotaxis Chemotaxins Species Specific (1) Miller (1978) sea urchins resact Capacitation 7 8 sea urchin midpiece nucleus G-actin acrosome jelly coat vitelline membrane species specific (2) 9
4 membrane fusion acrosome membrane sperm cell membrane 10 digestive enzymes channel jelly coat 11 G-actin polymerize F-action acrosomal tubule 12
5 acrosomal tubule vitelline membrane 13 gamete binding species specific (3) bindin binding sites 14 fertilization cone actin microfilaments 15
6 gamete fusion membrane fusion 16 Fertilization: Hermit Crab sperm midpiece nucleus oocyte 17 Fertilization: Giant Sperm Frog lung Fluke (trematode) - small eggs: 8 µm - sperm head: µm - sperm tail: 275 µm - fertilized egg: 10 µm Drosophila bifurcata - sperm: 6 cm (male=0.3 cm) - translates to 40 yds for a 6 ft man - females: store sperm in long, thin receptacle in which sperm stretch out 18
7 Fertilization: Mammals bindin acrosomal tubule zona pellucida - (vitelline membrane) gamete fusion 19 Syngamy male pronucleus centriole microfilaments mitochondria flagellum 20 Syngamy nuclear membrane decondensation histones 21
8 Syngamy nuclear membrane decondensation histones centriole 22 nuclear membrane decondensation histones centriole --> movement Syngamy 23 Syngamy centriole spindle fibers aster 24
9 Syngamy spindle fibers movement pronuclear fusion 2N--> zygote 25 Syngamy centrioles mitotic spindles DNA replication 26 Resting Membrane Potential (-70 mv) ions Na + membrane permeability +20 mv fast block to polyspermy Membrane Potential 27
10 Cortical Reaction 28 slow block to polyspermy cortical granules golgi 15,000/egg Cortical Reaction 29 Cortical Reaction fusion with cell membrane release contents cell membrane vitelline membrane 30
11 Proteases Mucopolysacchrides osmotic gradient Peroxidases fertilization membrane Hyalin hyaline layer Cortical Reaction 31 fertilization membrane hyaline layer cell membrane Cortical Reaction jelly coat cell cytoplasm 32 Electrophysiology Na + influx H + efflux Ca ++ 33
12 Electrophysiology What is the relationship between Na+ in and H+ out? Experiment 1 -use Na+ free H 2O -fertilize eggs 34 Electrophysiology What is the relationship between Na+ in and H+ out? Experiment 2 -add Na+ back into previous experiment 35 Electrophysiology Which is more important: Na+ in and H+ out? Experiment 1 -add freshly fertilized eggs to a solution of amiloride and Na+ 36
13 Electrophysiology Which is more important: Na+ in and H+ out? Experiment 2 -add ammonia to the cytoplasm of the oocyte Conclusions 37 The Role of Calcium Electrophysiology Heilbrum Mazia Steinhart & Eppel ionophore A23187 Vacquier & Payne aequorin General Conclusions 38 Summary: Electrophysiology 39
14 Summary: Timing Event Sperm-egg binding Minor influx of sodium ions; changes in membrane potential (fast block to polyspermy) Sperm-egg membrane fusion Liberation of Ca++ from endoplasmic reticulum Cortical reaction; Na+/H+ exchange begins Conversion of NAD+ to NADP+ Formation of fertilization membrane complete Rise in oxygen consumption Timing 0 sec 1 sec 6 sec 6 sec sec 60 sec 60 sec 60 sec 40 Summary: Timing Event Sperm entry Increase in intracellular ph Sperm chromatin decondensation Sperm nucleus migrates toward the center of the egg Egg nucleus migrates toward the center of the egg Increase in protein synthesis Activation of amino acid transport systems Fusion of egg and sperm nuclei Initiation of DNA synthesis First cleavage Timing 1-2 min 1-5 min 2-12 min 2-12 min 5-10 min 5-10 min 5-10 min 20 min min min 41
Exam 2 ID#: November 9, 2006
Biology 4361 Name: KEY Exam 2 ID#: November 9, 2006 Multiple choice (one point each) Circle the best answer. 1. Inducers of Xenopus lens and optic vesicle include a. pharyngeal endoderm and anterior neural
More informationCellular Reproduction = Cell Division. Passes on Genes from Cells to Cells Reproduction of Organisms
Cellular Reproduction = Cell Division Passes on Genes from Cells to Cells Reproduction of Organisms Genes DNA Chromatin fiber Chromosomes Fig. 9.6 Genes, the segments of DNA, are part of chromatin fiber
More informationExam 4 ID#: July 7, 2008
Biology 4361 Name: KEY Exam 4 ID#: July 7, 2008 Multiple choice (one point each; indicate the best answer) 1. RNA polymerase II is not able to transcribe RNA unless a. it is first bound to TFIIB. b. its
More information2:1 Chromosomes DNA Genes Chromatin Chromosomes CHROMATIN: nuclear material in non-dividing cell, composed of DNA/protein in thin uncoiled strands
Human Heredity Chapter 2 Chromosomes, Mitosis, and Meiosis 2:1 Chromosomes DNA Genes Chromatin Chromosomes CHROMATIN: nuclear material in non-dividing cell, composed of DNA/protein in thin uncoiled strands
More informationName Chapter 10: Chromosomes, Mitosis, and Meiosis Mrs. Laux Take home test #7 DUE: MONDAY, NOVEMBER 16, 2009 MULTIPLE CHOICE QUESTIONS
MULTIPLE CHOICE QUESTIONS 1. A bacterial chromosome consists of: A. a linear DNA molecule many times larger than the cell. B. a circular DNA molecule many times larger than the cell. C. a circular DNA
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 informationKEY CONCEPT Cells have distinct phases of growth, reproduction, and normal functions.
5.1 10.1 The Cell Cell Growth Cycle KEY CONCEPT Cells have distinct phases of growth, reproduction, and normal functions. 5.1 10.1 The Cell Cell Growth Cycle Why must cells divide? Growth and Repair -
More information1. If a eukaryotic cell has a single set of chromosomes, it is called A. haploid B. diploid C. polypoid
Reproduction 1. If a eukaryotic cell has a single set of chromosomes, it is called A. haploid B. diploid C. polypoid 2. Which of the following cell functions are maintained by cell division? A. growth,
More informationSexual Reproduction. The two parent cells needed for sexual reproduction are called gametes. They are formed during a process known as meiosis.
Sexual Reproduction Recall that asexual reproduction involves only one parent cell. This parent cell divides to produce two daughter cells that are genetically identical to the parent. Sexual reproduction,
More informationMeiosis. The form of cell division by which gametes, with half the regular number of chromosomes, are produced.
MEIOSIS Meiosis The form of cell division by which gametes, with half the regular number of chromosomes, are produced. diploid (2n) haploid (n) (complete set of chromosomes) (half the regular number of
More informationMGC New Life Christian Academy
A. Meiosis Main Idea: Meiosis produces haploid gametes. Key Concept: Asexual reproduction involves one parent and produces offspring that are genetically identical to each other and to the parent. Sexual
More informationPhysicsAndMathsTutor.com. Question Number 1(a) Answer Additional Guidance Mark. 1. nucleus drawn in the correct position and labelled ;
1(a) 1. nucleus drawn in the correct position and labelled ; 2. mitochondrion or mitochondria drawn in the correct position and labelled ; 3. flagellum drawn in the correct position and labelled ; 2. N
More informationCellular Division. copyright cmassengale
Cellular Division 1 Cell Division All cells are derived from pre- existing cells New cells are produced for growth and to replace damaged or old cells Differs in prokaryotes (bacteria) and eukaryotes (protists,
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 informationThe Cell Cycle. Chapter 12
The Cell Cycle Chapter 12 Why are cells small? As cells get bigger they don t work as well WHY? Difficulties Larger Cells Have: More demands on its DNA Less efficient in moving nutrients/waste across its
More informationCell Division. Mitosis 11/8/2016
Cell division consists of two phases, nuclear division followed by cytokinesis. Nuclear division divides the genetic material in the nucleus, while cytokinesis divides the cytoplasm. There are two kinds
More informationCell Growth and Division
Cell Growth and Division Why do cells divide* Life and reproduction require cell division You require constant cell reproduction to live Mitosis: development (a) mitotic cell division (b) mitotic cell
More informationBiology Unit 6 Chromosomes and Mitosis
Biology Unit 6 Chromosomes and Mitosis 6:1 Chromosomes DNA GENES CHROMATIN/CHROMOSOMES CHROMOSOMES/CHROMATIN are made of units called GENES. GENES are made of a compound called deoxyribonucleic acid or
More informationHuman biology Laboratory. Cell division. Lecturer Maysam A Mezher
Human biology Laboratory Cell division Lecturer Maysam A Mezher CHROMOSOME STRUCTURE 1. During nuclear division, the DNA (as chromatin) in a Eukaryotic cell's nucleus is coiled into very tight compact
More informationCELL REPRODUCTION VOCABULARY- CHAPTER 8 (33 words)
CELL REPRODUCTION- CHAPTER 8 CELL REPRODUCTION VOCABULARY- CHAPTER 8 (33 words) 1. Chromosome 2. histone 3. chromatid 4. Centromere 5. chromatin 6. autosome 7. Sex chromosome 8. homologous chromosome 9.
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 informationAsexual vs. Sexual. Biology 3201 Unit II Reproduction How Reproductive Cells are Produced. two parents offspring is unique
Biology 3201 Unit II Reproduction 14.2 How Reproductive Cells are Produced Asexual vs single parent offspring identical to parent parent passes on ALL its genes results in a clone Sexual two parents offspring
More informationNow starts the fun stuff Cell structure and function
Now starts the fun stuff Cell structure and function Cell Theory The three statements of the cell theory are: All organisms are composed of one or more cells and the processes of life occur in these cells.
More informationTopic 8 Mitosis & Meiosis Ch.12 & 13. The Eukaryotic Genome. The Eukaryotic Genome. The Eukaryotic Genome
Topic 8 Mitosis & Meiosis Ch.12 & 13 The Eukaryotic Genome pp. 244-245,268-269 Genome All of the genes in a cell. Eukaryotic cells contain their DNA in long linear pieces. In prokaryotic cells, there is
More informationRoles of Cell Division. Reproduction - Like begets like, more or less. Examples of Cell Numbers. Outline Cell Reproduction
Outline Cell Reproduction 1. Overview of Cell Reproduction 2. Cell Reproduction in Prokaryotes 3. Cell Reproduction in Eukaryotes 1. Chromosomes 2. Cell Cycle 3. Mitosis and Cytokinesis 4. Sexual Life
More informationTHE CELL CYCLE & MITOSIS. Asexual Reproduction: Production of genetically identical offspring from a single parent.
THE CELL CYCLE & MITOSIS Asexual Reproduction: Production of genetically identical offspring from a single parent. Sexual Reproduction: The fusion of two separate parent cells that produce offspring with
More informationEdexcel (A) Biology A-level
Edexcel (A) Biology A-level Topic 3: Voice of the Genome Notes Cell Structure All living organisms are made of cells and share some common features. In multicellular organisms, cells are organised into
More informationLesson Overview Meiosis
11.4 Chromosomes strands of DNA and protein contain the genes. genes are located in specific positions on chromosomes. Humans receive a set (23) of chromosomes from each parent. 23 chromosomes from mom
More informationCell Division. Mitosis
Cell division consists of two phases, nuclear division followed by cytokinesis. Nuclear division divides the genetic material in the nucleus, while cytokinesis divides the cytoplasm. There are two kinds
More informationThe Cell Notes 1 of 11
The Cell The basic unit of structure and function in living things The smallest units in living things The smallest units in living things that show the characteristics of life Organisms can be made of
More informationThe Cell. The basic unit of all living things
The Cell The basic unit of all living things 1 Robert Hooke was the first to name the cell (1665) 2 The Cell Theory The cell is the unit of Structure of all living things. The cell is the unit of Function
More informationCell Division (Outline)
Cell Division (Outline) 1. Overview of purpose and roles. Comparison of prokaryotic and eukaryotic chromosomes and relation between organelles and cell division. 2. Eukaryotic cell reproduction: asexual
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 information5. As compared to the human sperm cell, the human egg cell contains more... a) cytoplasm c) centrosomes b) mitochondria d) chromosomes
BIOLOGY - 3201. Quiz: Cell Reproduction. NAME : Multiple Choice. (1% each) 1. Which of the following is NOT true of mitotic cell division? a) It involves nuclear division. b) It involves division of the
More informationKey Concepts. n Cell Cycle. n Interphase. n Mitosis. n Cytokinesis
The Cell Cycle B-2.6: Summarize the characteristics of the cell cycle: interphase (G 1, S, G 2 ); the phases of mitosis (prophase, metaphase, anaphase, telophase); and plant and animal cytokinesis. Key
More informationYou have body cells and gametes Body cells are known as somatic cells. Germ cells develop into gametes or sex cells. Germ cells are located in the
MEIOSIS You have body cells and gametes Body cells are known as somatic cells. Germ cells develop into gametes or sex cells. Germ cells are located in the ovaries and testes. Gametes are sex cells: egg
More informationSexual Reproduction and Meiosis. Outline. Random?? fertilization. Chapter 13
Sexual Reproduction and Meiosis Chapter 13 Outline Reduction Division Unique Features of Meiosis Prophase I Metaphase I Completing Meiosis Second Meiotic Division Sexual Reproduction Origin and Maintenance
More informationWhy do cells divide? Why do cells divide? What would happen if they didn t?
1 of 41 Boardworks Ltd 2007 2 of 41 Boardworks Ltd 2007 Why do cells divide? 3 of 41 Boardworks Ltd 2007 Why do cells divide? What would happen if they didn t? Organisms would only ever exist as single
More information3.2 Cell Organelles. KEY CONCEPT Eukaryotic cells share many similarities.
KEY CONCEPT Eukaryotic cells share many similarities. ! Cells have an internal structure. ! Cells have an internal structure. The cytoskeleton has many functions. ! Cells have an internal structure. The
More informationThe Cell Cycle and Cell Division
The Cell Cycle and Cell Division «The cell cycle is a regular pattern of growth, DNA replication, and cell division. The cell cycle has four main stages. «The main stages of the cell cycle are G1 (gap
More informationMitosis & Meiosis Practice Questions
Name: Date: 1. The diagram shown represents a cell that will undergo mitosis. Which diagrams below best illustrate the nuclei of the daughter cells that result from a normal mitotic cell division of the
More informationLesson Overview Meiosis
11.4 THINK ABOUT IT As geneticists in the early 1900s applied Mendel s laws, they wondered where genes might be located. They expected genes to be carried on structures inside the cell, but which structures?
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 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 informationHole s Human Anatomy and Physiology
Hole s Human Anatomy and Physiology 1 Chapter 3 Cells vary in size possess distinctive shapes measured in micrometers 2 A Composite Cell hypothetical cell major parts nucleus cytoplasm cell membrane 3
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 informationUnit 6 Test: The Cell Cycle
Name Date Class Mrs. Knight Biology EHS Unit 6 Test: The Cell Cycle 1. What are the four main stages of the cell cycle (correct order)? A. G 1, S, G 0, M C. G 2, S, G 1, M B. G 1, S, G 2, M D. M, G 2,
More informationCELL REPRODUCTION. Unit 20 LEARNING OBJECTIVES:
Unit 20 CELL REPRODUCTION LEARNING OBJECTIVES: 1. Be able to distinguish the differences between mitotic and meiotic cell division. 2. Learn the role that both mitotic and meiotic types of cell division
More informationKEY: Chapter 9 Genetics of Animal Breeding.
KEY: Chapter 9 Genetics of Animal Breeding. Answer each question using the reading assigned to you. You can access this information by clicking on the following URL: https://drive.google.com/a/meeker.k12.co.us/file/d/0b1yf08xgyhnad08xugxsnfvba28/edit?usp=sh
More informationChapter 11: The Continuity of Life: Cellular Reproduction. What is Cellular Reproduction?
Chapter 11: The Continuity of Life: Cellular Reproduction What is Cellular Reproduction? Answer: The division of a parent cell into two daughter cells Requirements of Each Daughter Cell: 1) Necessary genomic
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 informationChapter 2 Cells and Cell Division
Chapter 2 Cells and Cell Division MULTIPLE CHOICE 1. The process of meiosis results in: A. the production of four identical cells B. no change in chromosome number from parental cells C. a doubling of
More informationCell Reproduction. Objectives
Cell Reproduction Lecture 10 Objectives At the end of this series of lectures you should be able to: Define terms. Describe the functions of cellular reproduction. Compare the parent offspring relationship
More informationChapter 2 Cells and Cell Division
Chapter 2 Cells and Cell Division MULTIPLE CHOICE 1. The process of meiosis results in. A. the production of four identical cells B. no change in chromosome number from parental cells C. a doubling of
More informationMitosis and Meiosis. 2. The distribution of chromosomes in one type of cell division is shown in the diagram below.
Name: Date: 1. Jack bought a small turtle. Three months later, the turtle had grown to twice its original size. Which of the following statements best describes why Jack s turtle got bigger? A. Parts of
More informationPrinciples of Cellular Biology
Principles of Cellular Biology آشنایی با مبانی اولیه سلول Biologists are interested in objects ranging in size from small molecules to the tallest trees: Cell Basic building blocks of life Understanding
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 informationFACULTY OF ENGINEERING
FACULTY OF ENGINEERING UNIT: InSTEM QUALIFICATION: Introduction to Science, Technology, Engineering and Mathematics QUALIFICATION CODE: 04STEM LEVEL: 4 COURSE: Introduction to Biology DATE: November 2015
More informationHistory of Cell Theory. Organization of Life
History of Cell Theory Robert Hooke first observed cells while examining cork under the microscope (mid- 1600 s) Anton van Leeuwenhoek first observed microscopic organisms in pond water, as well as blood
More informationSexual Reproduction ( Cell Division ) - Chromosome # s
Sexual Reproduction ( Cell Division ) - Chromosome # s somatic cells: all the cells in the body except for specialized sex cells each somatic cell has a specific # of chromosomes - ( humans have 46, 23
More informationMitosis and Meiosis for AP Biology
Mitosis and Meiosis for AP Biology by Mark Anestis Practice problems for these concepts can be found at : Cell Division Review Questions for AP Biology Mitosis During mitosis, the fourth stage of the cell
More informationTHE CELL 3/15/15 HUMAN ANATOMY AND PHYSIOLOGY I THE CELLULAR BASIS OF LIFE
HUMAN ANATOMY AND PHYSIOLOGY I Lecture: M 6-9:30 Randall Visitor Center Lab: W 6-9:30 Swatek Anatomy Center, Centennial Complex Required Text: Marieb 9 th edition Dr. Trevor Lohman DPT (949) 246-5357 tlohman@llu.edu
More informationBio 105: Cell Division
Cell Division Bio 105: Cell Division Starts with DNA Replication Laboratory 8 DNA Replication When does DNA replicate? Just prior to cell division Multicellular Organisms Grow Replace old cells Unicellular
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 informationNotes: Cell Processes 1. Movement across cell membrane 2. Photosynthesis 3. Cellular respiration 4. Cell cycle
Notes: Cell Processes 1. Movement across cell membrane 2. Photosynthesis 3. Cellular respiration 4. Cell cycle AMDG 1. Notes: Movement across a cell membrane Cell Membrane-see picture in text book What
More informationGenetics word list. the molecule which contains genes. This will be looked at in more detail. it is shaped in a double helix (spiral)
Genetics word list DNA the molecule which contains genes. This will be looked at in more detail. it is shaped in a double helix (spiral) Chromosomes X-shaped objects found in the nucleus of a cell. The
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 informationMeiosis. Two distinct divisions, called meiosis I and meiosis II
Meiosis A process in which the number of chromosomes per cell is cut in half through the separation of homologous chromosomes to form gametes, or sex cells Two distinct divisions, called meiosis I and
More informationLEARNING OBJECTIVES: HUHE.CUMM Summarize the three phases of the cell cycle: interphase, mitosis, and cytokinesis.
True / False 1. Mitotic divisions reduce the number of chromosomes found in daughter cells. False LEARNING OBJECTIVES: HUHE.CUMM.16.2-4-1 - Summarize the three phases of the cell cycle: interphase, mitosis,
More informationChapter 3. Cells. Cells. Cells
Chapter 3 Cells Cells Cytology The basic unit of life Humans have about 75 trillion cells Largest human cell is the egg While there are many varieties to cells there are many common characteristics. Cells
More informationGENETICS - CLUTCH CH.9 MITOSIS AND MEIOSIS.
!! www.clutchprep.com CONCEPT: MITOSIS Mitosis is a type of cell division that produces daughter cells Interphase is the initial stage of the cell cycle, and is the period between divisions - G1, which
More informationReading Assignments. A. Systems of Cell Division. Lecture Series 5 Cell Cycle & Cell Division
Lecture Series 5 Cell Cycle & Cell Division Reading Assignments Read Chapter 18 Cell Cycle & Cell Death Read Chapter 19 Cell Division Read Chapter 20 pages 659-672 672 only (Benefits of Sex & Meiosis sections)
More informationLecture Series 5 Cell Cycle & Cell Division
Lecture Series 5 Cell Cycle & Cell Division Reading Assignments Read Chapter 18 Cell Cycle & Cell Death Read Chapter 19 Cell Division Read Chapter 20 pages 659-672 672 only (Benefits of Sex & Meiosis sections)
More informationCell Division THE MAJOR STEPS OF CELL DIVISION: 10/28/2013. When does DNA replicate? The first step of cell division is DNA replication:
Cell Division Biology 105 Laboratory 8 THE MAJOR STEPS OF CELL DIVISION: When does DNA replicate? The first step of cell division is DNA replication: This occurs just prior to cell division. Cells need
More informationCell Reproduction Mitosis & Meiosis
Cell Reproduction Mitosis & Meiosis Outcomes 1. Describe mitosis in detail (460-465) interphase, mitosis and cytokinesis (the cell cycle) explain the importance of maintaining chromosome number through
More informationFertilization of sperm and egg produces offspring
In sexual reproduction Fertilization of sperm and egg produces offspring In asexual reproduction Offspring are produced by a single parent, without the participation of sperm and egg CONNECTIONS BETWEEN
More informationAnaphase, Telophase. Animal cells divide their cytoplasm by forming? Cleavage furrow. Bacteria, Paramecium, Amoeba, etc. reproduce by...
The 4 phases of mitosis Animal cells divide their cytoplasm by forming? Bacteria, Paramecium, Amoeba, etc. reproduce by... Cell which after division is identical to the original is called a Prophase, Metaphase,
More informationName: Date: Period: Cell Cycles and DNA Study Guide
Name: Date: Period: DNA (Deoxyribonucleic Acid) is the chemical inside the nucleus of cells that contains hereditary information. DNA is shaped like a double helix/twisted ladder. The sides of the ladder
More informationHonors Biology Test Chapter 8 Mitosis and Meiosis
Honors Biology Test Chapter 8 Mitosis and Meiosis 1. In mitosis, if a parent cell has 16 chromosomes, each daughter cell will have how many chromosomes? a. 64 b. 32 c. 16 d. 8 e. 4 2. Chromatids that are
More informationGeneral A&P Cell Labs - Cellular Anatomy & Division (Mitosis) Pre-Lab Guide
1 General A&P Cell Labs - Cellular Anatomy & Division (Mitosis) Pre-Lab AWalk-About@ Guide Have someone in your group read the following out loud, while the others read along: In this "Walk About", we
More informationThe Cell Cycles Mitosis and Meiosis. Essential question: How do cells reproduce and why?
The Cell Cycles Mitosis and Meiosis Essential question: How do cells reproduce and why? Objectives Section 10.1 Explain why cells divide in terms of growth and cell size Review - Types of Cell Division
More informationLearning Objectives Chapter 8
Learning Objectives Chapter 8 Brief overview of prokaryotic cell replication The three main phases of eukaryotic cell division: Interphase, M phase, C phase Interphase is broken down into three sub-phases
More informationCell Cycle (mitosis and meiosis) Test Review
Cell Cycle (mitosis and meiosis) Test Review Name: Chapter 10 1. What problems are caused when a cell becomes too large? When a cell becomes too large the cell is strained and has a hard time moving enough
More informationModule B Unit 5 Cell Growth and Reproduction. Mr. Mitcheltree
Module B Unit 5 Cell Growth and Reproduction Mr. Mitcheltree DNA and Genetics - The Cell and Inheritance Gene = group of codons that code for a specific protein Allele = alternate form of a gene A dominant,
More informationFoldable. You need 6 pieces of printer paper. Stagger the pages about 1cm (width of pinky finger) DO NOT make the tabs too large!!!!!
Meiosis Notes Foldable You need 6 pieces of printer paper Stagger the pages about 1cm (width of pinky finger) DO NOT make the tabs too large!!!!! Fold the stack of pages to make the foldable as diagramed
More informationACCELERATE ITS BIOCHEMICAL PROCESSES WHICH WERE SLOWED DOWN BY MITOSIS. THE LENGTH OF THE G1 PHASE CREATES THE DIFFERENCE BETWEEN FAST DIVIDING
CHAPTER 1: OVERVIEW OF THE CELL CYCLE THE THREE STAGES OF INTERPHASE: INTERPHASE BEFORE A CELL CAN ENTER CELL DIVISION, IT NEEDS TO PREPARE ITSELF BY REPLICATING ITS GENETIC INFORMATION AND ALL OF THE
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 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 informationWhat is mitosis? -Process in which a cell divides, creating TWO complete Sets of the original cell with the same EXACT genetic Material (DNA)
What is mitosis? -Process in which a cell divides, creating TWO complete Sets of the original cell with the same EXACT genetic Material (DNA) Cell Division Produces CLONES with the same # of chromosomes
More informationLesson 1. Cell cycle Chromosomes Mitosis phases
Lesson 1 Cell cycle Chromosomes Mitosis phases Organism Diploid chromosome # (2n) in body cells Haploid chromosome # (n) in gametes Human *(memorize) 46 23 Goat 60 30 Guinea pig 64 32 Bat 44 22 Squirrel
More informationMEIOSIS CELL DIVISION Chapter
Section 6.1: Meiosis MEIOSIS CELL DIVISION Chapter 6.1 6.2 WHAT DETERMINES WHAT YOU LOOK LIKE? Meiosis Animation Meiosis creates 4 genetically different gametes (haploid) Mitosis creates 2 identical daughter
More informationBiology 067 Section 14 Cell Division. A. Definitions:
Biology 067 Section 14 Cell Division A. Definitions: In a human cell, a nucleus holds all the chromatin that condenses to form chromosomes when cells divide every cell in the body has the same set of chromosomes
More informationFACULTY OFENGINEERING. UNIT: lnstem FIRSTOPPORTUNITY EXAMINATION PAPER. MODERATOR: Mr Petrus Paulus THIS PAPER CONSISTS OF 5 PAGES
namibia UniVERSITY 0 F SCIEnCE AnD TECHnOLOGY Faculty of Engineering T: +264 61 207 2552 F: +264 61 207 9024 E: eng@nust.na W: www.nust.na Office of the Dean: lnstem FACULTY OFENGINEERING UNIT: lnstem
More informationREVIEW 2: CELLS & CELL COMMUNICATION. A. Top 10 If you learned anything from this unit, you should have learned:
Name AP Biology REVIEW 2: CELLS & CELL COMMUNICATION 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 informationWhat is Mitosis? What is the purpose of Mitosis? Growth Repair Asexual reproduction What is the ultimate result of Mitosis?
Sexual Reproduction What is Mitosis? What is the purpose of Mitosis? Growth Repair Asexual reproduction What is the ultimate result of Mitosis? http://www.youtube.com/watch?v=1fyfdfdrymq Somatic cells
More informationCell Structure and Cell Cycle
E X E R C I S E 4 Cell Structure and Cell Cycle Materials model or diagram of a cell compound microscopes and lens paper prepared slides of human skeletal muscle cells, pseudostratified ciliated columnar
More informationChapter 3: Structure and Function of the Cell
Chapter 3: Structure and Function of the Cell I. Functions of the Cell A. List and describe the main functions of the cell: 1. 2. 3. 4. 5. II. How We See Cells A. Light microscopes allow us to B. Electron
More informationCell structure and functions
Cell structure and functions Cells: The cell is the basic structural and functional unit of life. All living organisms are made up of cells. Cells make tissues, tissues make organs, organs make organ systems
More informationCells & Cell Organelles. Doing Life s Work
Cells & Cell Organelles Doing Life s Work Types of cells bacteria cells Prokaryote Eukaryotes animal cells plant cells Cell size comparison Animal cell Bacterial cell most bacteria 1-10 microns eukaryotic
More informationCells: The Living Units
Golgi Apparatus Cells: The Living Units Chapter 3, PPT 2 Membrane Yes, stacked and flattened Description Stacked and flattened membranous sacs Modify, concentrate, and package proteins & lipids made at
More information