CELL DIVISION! Genes, Mitosis and Cytokinesis 12/17/14. G. Podgorski, Biol Mitosis!

Size: px
Start display at page:

Download "CELL DIVISION! Genes, Mitosis and Cytokinesis 12/17/14. G. Podgorski, Biol Mitosis!"

Transcription

1 Genes, Mitosis and Cytokinesis 12/17/14 CELL DIVISION! Mitosis! ü Mitotic division results in genetically identical eukaryotic cells or a clone ü Mitosis is the basis of asexual! reproduction G. Podgorski, Biol

2 Genes, Mitosis and Cytokinesis 12/17/14 LIFESPAN OF SOME CELLS IN THE HUMAN BODY! Prokaryotes! ü Granulocytes: eosinophils basophils, neutrophils ü Stomach lining cells ü Colon cells ü Epithelia of small intestine less ü Platelets ü Skin epidermal cells ü Lymphocytes ü Red blood cells (120 days) ü Pancreas cells more ü Brain cells 10 hours to 3 days 2-3 days 3-4 days 1 week or 10 days 2-4 weeks 2 months - a year 4 months ü Prokaryotes simply divide their cells in two by binary fission 1 year or years Eukaryotes! ü Eukaryotes must divide their nucleus ü When nucleus divides, the DNA duplicates. This is called replication. Organelles must also replicate ü Why do cells divide? ü Reason #1: ü If a cell kept getting bigger, there wouldn t be enough DNA to provide sufficient information Why do cells divide? Why do cells divide? ü Reason #2: ü Reason #3 ü If a cell kept getting bigger, couldn t move nutrients and wastes across the cell membrane G. Podgorski, Biol ü To replace old and worn out cells. 2

3 Genes, Mitosis and Cytokinesis The three main components of the cell cycle. 12/17/14 After DNA is replicated it must be packaged into chromosomes. Why? Interphase duplicated chromosome What s so important about cell division? chromatin DUPLICATING CHROMSOMES If there are 6 sister chromatids, how many chromosomes are in the cell? DNA is Condensed into Visible Chromosomes Only For Brief Periods in the Life of a Cell centromere 95% of the time, chromosomes are like this. Easily visible chromosomes are apparent perhaps 5% of the time in an actively growing cell and less in a non-growing cell. A Karyotype is an Arranged Picture of Chromosomes At Their Most Condensed State Note that almost all chromosomes come in homologous pairs. Boy or girl? A normal human karyotype G. Podgorski, Biol

4 Genes, Mitosis and Cytokinesis 12/17/14 The Cell Cycle-notes ü Series of 3 main events that cells go through as they grow and divide. 1. INTERPHASE a. G1- growth phase; organelles replicated. b. S- chromosomes are replicated c. G2- growth; double check before division. 2, MITOSIS (PMAT) 3. CYTOKINESIS I Punched Melanie And The Cat ü 1.Prophase ü 2.Metaphase ü 3.Anaphase MITOSIS highlights - Mitosis Divides the Duplicated Chromosomes: THE DANCE OF THE CHROMOSOMES! 1. Prophase: chromatin condenses centrioles separate spindle begins to form nuclear envelope breaks down 2.Metaphase: Lasts only a few minutes Chromosomes line up on the metaphase plate (middle) Spindle fibers connect to the centromere of each chromosome 3.Anaphase: Centromeres separate Chromosomes move to opposite sides of the cell. 4.Telophase: Chromosomes uncoil Nuclear envelope reappears Spindle begins to break apart Nucleolus becomes visible Mitosis Precisely and Evenly Divides Duplicated Chromosomes anaphase centromere interphase prophase metaphase What is a centromere? G. Podgorski, Biol ü 4.Telophase telophase Two New Identical Daughter Cells! Cytokinesis is NOT included in mitosis. 4

5 Genes, Mitosis and Cytokinesis 12/17/14 Mitosis in Action Cytokinesis Blue shows DNA, green shows spindle fibers. ü Division of cytoplasm ü Occurs differently in plants than in animals Cytokinesis in animal cells: Cytokinesis in plant cells: In animal cells, a cleavage furrow forms and separates daughter cells. Cleave furrow in a dividing frog cell. In plant cells, a cell plate forms and separates the daughter cells. Onion Root Tip CANCER Cancer develops when cells in a part of the body begin to grow out of control. Brain cancer cell G. Podgorski, Biol

6 Genes, Mitosis and Cytokinesis 12/17/14 Cancer Is One Outcome of A Runaway Cell Cycle What s in a name? Carcinoma any tissue communicating with the outside Sarcoma supporting tissue Lymphoma immune system Leukemia blood The good and the bad Benign locally grown; tumor remains in the original site of growth Malignant a.k.a. The bad ability to spread ü STOP! Metastasize when a tumor has spread from its original growth site Cell division is a fundamental process! ü All cells come from pre-existing cells ü It is necessary to replace worn out cells in multicellular organisms ü It is required for growth in multicellular organisms ü It is necessary for reproduction in unicellular or multicellular organisms G. Podgorski, Biol Cell Cycle ü Series of events that cells go through as they grow and divide ü Cell grows ü Prepares for division ü Divides to form daughter cells ü Daughter cells restart the cycle 6

7 Genes, Mitosis and Cytokinesis 12/17/14 DNA and Its Faithful Replication Proteins and Their Production The Primary Reason for DNA Because DNA stores genetic information and is faithfully replicated, information is passed largely unaltered from cell-to-cell, generation-to- generation. Cell division requires coordinated division of chromosomes (mitosis).. DNA Replication Simple in Principle, Complicated in Practice and division of the cytoplasm (cytokinesis). The Link Between DNA Replication and Chromosome Duplication G. Podgorski, Biol

8 Genes, Mitosis and Cytokinesis 12/17/14 G. Podgorski, Biol

Cell Cycle. Interphase, Mitosis, Cytokinesis, and Cancer

Cell Cycle. Interphase, Mitosis, Cytokinesis, and Cancer Cell Cycle Interphase, Mitosis, Cytokinesis, and Cancer Cell Division One cell divides into 2 new identical daughter cells. Chromosomes carry the genetic information (traits) of the cell How many Chromosomes

More information

10-2 Cell Division. Copyright Pearson Prentice Hall

10-2 Cell Division. Copyright Pearson Prentice Hall 10-2 Cell Division Copyright Pearson Prentice Hall Cell Growth and Division In multicellular organisms, cell division makes new cells To replace old or damaged ones So organisms can grow In single-celled

More information

The Process of Cell Division

The Process of Cell Division Lesson Overview 10.2 The Process of Cell Division THINK ABOUT IT What role does cell division play in your life? Does cell division stop when you are finished growing? Chromosomes What is the role of chromosomes

More information

Cell Division Mitosis Notes

Cell Division Mitosis Notes Cell Division Mitosis Notes Cell Division process by which a cell divides into 2 new cells Why do cells need to divide? 1.Living things grow by producing more cells, NOT because each cell increases in

More information

Cell Division Mitosis Notes

Cell Division Mitosis Notes Cell Division Mitosis Notes Cell Division process by which a cell divides into 2 new cells Why do cells need to divide? 1.Living things grow by producing more cells, NOT because each cell increases in

More information

Chromosomes & Cell Division

Chromosomes & Cell Division Chromosomes & Cell Division Cell Division The growth and splitting of cells into two new, identical cells called daughter cells. Mitosis Meiosis DNA replicates Parent cell Chromosomes separate Cell division

More information

Cell Division Mitosis Notes

Cell Division Mitosis Notes Cell Division Mitosis Notes Cell Division process by which a cell divides into 2 new cells Why do cells need to divide? 1.Living things grow by producing more cells, NOT because each cell increases in

More information

The Cell Cycle. Chapter 10

The Cell Cycle. Chapter 10 The Cell Cycle Chapter 10 Why Do Cells Divide? Unicellular 1. Reproduction Multicellular 1. Grow 2. Repair 3. Development/reproduction Types of Division Prokaryotic cells Binary fission = asexual reproduction

More information

The Cellular Basis of Reproduction and Inheritance

The Cellular Basis of Reproduction and Inheritance Chapter 8 The Cellular Basis of Reproduction and Inheritance PowerPoint Lectures for! Biology: Concepts and Connections, Fifth Edition! Campbell, Reece, Taylor, and Simon Lectures by Chris Romero Objective:

More information

Mitosis and Cytokinesis

Mitosis and Cytokinesis B-2.6 Summarize the characteristics of the cell cycle: interphase (called G1, S, G2); the phases of mitosis (called prophase, metaphase, anaphase, and telophase); and plant and animal cytokinesis. The

More information

The Cell Cycle. Biology

The Cell Cycle. Biology The Cell Cycle Biology Standards you are responsible for mastering. SB1a: Explain the role of cell organelles for both prokaryotic and eukaryotic cells, including the cell membrane, in maintaining homeostasis

More information

CELL CYCLE INTRODUCTION PART I ANIMAL CELL CYCLE INTERPHASE

CELL CYCLE INTRODUCTION PART I ANIMAL CELL CYCLE INTERPHASE CELL CYCLE INTRODUCTION The nuclei in cells of eukaryotic organisms contain chromosomes with clusters of genes, discrete units of hereditary information consisting of double-stranded DNA. Structural proteins

More information

Cell Cycle and Mitosis

Cell Cycle and Mitosis Cell Cycle and Mitosis Name Period A# THE CELL CYCLE The cell cycle, or cell-division cycle, is the series of events that take place in a eukaryotic cell between its formation and the moment it replicates

More information

The Cell Cycle. Biology

The Cell Cycle. Biology The Cell Cycle Biology Standards you are responsible for mastering. SB1a: Explain the role of cell organelles for both prokaryotic and eukaryotic cells, including the cell membrane, in maintaining homeostasis

More information

The Cell Cycle and Cell Division

The Cell Cycle and Cell Division Content Vocabulary Directions: On each line, write the term from the word bank that correctly replaces the underlined words in each sentence. NOTE: You may need to change a term to its plural form. cell

More information

10-2 Cell Division. Chromosomes

10-2 Cell Division. Chromosomes Cell Division In eukaryotes, cell division occurs in two major stages. The first stage, division of the cell nucleus, is called mitosis. The second stage, division of the cell cytoplasm, is called cytokinesis.

More information

MITOSIS INTRODUCTION. Cytokinesis. centromere. DNA Replication S-Phase. One Chromosome Two Chromatids. One Chromosome No Chromatids 10.

MITOSIS INTRODUCTION. Cytokinesis. centromere. DNA Replication S-Phase. One Chromosome Two Chromatids. One Chromosome No Chromatids 10. MITOSIS INTRODUCTION Cell reproduction usually involves two processes: 1) mitosis is the orderly separation and division of chromosomes in the nucleus and 2) cytokinesis is the division of the cytoplasm.

More information

-The cell s hereditary endowment of DNA -Usually packaged into chromosomes for manageability

-The cell s hereditary endowment of DNA -Usually packaged into chromosomes for manageability Binary Fission-Bacterial Cell Division -Asexual reproduction of prokaryotes -No mitosis -Circular DNA and organelles replicate, the copies migrate to opposite sides of the elongating cell, and the cell

More information

Outline Interphase Mitotic Stage Cell Cycle Control Apoptosis Mitosis Mitosis in Animal Cells Cytokinesis Cancer Prokaryotic Cell Division

Outline Interphase Mitotic Stage Cell Cycle Control Apoptosis Mitosis Mitosis in Animal Cells Cytokinesis Cancer Prokaryotic Cell Division The Cell Cycle and Cellular Reproduction Chapter 9 Outline Interphase Mitotic Stage Cell Cycle Control Apoptosis Mitosis Mitosis in Animal Cells Cytokinesis Cancer Prokaryotic Cell Division 1 2 Interphase

More information

Chapter 8 The Cell Cycle

Chapter 8 The Cell Cycle What molecule stores your genetic information or determines everything about you? DNA a nucleic acid How are DNA molecules arranged in the nucleus? As you can see DNA is: Chapter 8 The Cell Cycle 1. Arranged

More information

Mitosis and Cellular Division. EQ: How do the cells in our body divide?

Mitosis and Cellular Division. EQ: How do the cells in our body divide? Mitosis and Cellular Division EQ: How do the cells in our body divide? Cell division is the process by which cellular material is divided between two new daughter cells. 1 Mother Cell 2 Daughter cells.

More information

Why do cells divide? Cells divide in order to make more cells they multiply in order to create a larger surface to volume ratio!!!

Why do cells divide? Cells divide in order to make more cells they multiply in order to create a larger surface to volume ratio!!! Why do cells divide? Cells divide in order to make more cells they multiply in order to create a larger surface to volume ratio!!! Chromosomes Are made of chromatin: a mass of genetic material composed

More information

Chromosomes and Cell Cycle

Chromosomes and Cell Cycle Chromosomes and Cell Cycle Cell Basics There are trillions of cells in your body Cells are microscopic Cells have DNA inside a structure called the nucleus The nucleus is enclosed by a structure called

More information

Mitosis. AND Cell DiVISION

Mitosis. AND Cell DiVISION Mitosis AND Cell DiVISION Cell Division Characteristic of living things: ability to reproduce their own kind. Cell division purpose: When unicellular organisms such as amoeba divide to form offspring reproduction

More information

Cell Growth and Division. Chapter 10

Cell Growth and Division. Chapter 10 Cell Growth and Division Chapter 10 Cell Division Before a cell becomes too large, it undergoes cell division, in which the cell divides and becomes 2 daughter cells. Before cell division occurs, the cell

More information

Chapter 10. Cell Cycle - Mitosis

Chapter 10. Cell Cycle - Mitosis Chapter 10 Cell Cycle - Mitosis WHAT CELL REPRODUCTION ACCOMPLISHES Cell division plays important roles in the lives of organisms. Cell division replaces damaged or lost cells permits growth allows for

More information

10-2 Cell Division. Slide 1 of 38. End Show. Copyright Pearson Prentice Hall

10-2 Cell Division. Slide 1 of 38. End Show. Copyright Pearson Prentice Hall 1 of 38 Cell Division In eukaryotes, cell division occurs in two major stages. The first stage, division of the cell nucleus, is called mitosis. The second stage, division of the cell cytoplasm, is called

More information

10-2 Cell Division mitosis. cytokinesis. Chromosomes chromosomes Slide 1 of 38

10-2 Cell Division mitosis. cytokinesis. Chromosomes chromosomes Slide 1 of 38 In eukaryotes, cell division occurs in two major stages. The first stage, division of the cell nucleus, is called mitosis. The second stage, division of the cell cytoplasm, is called cytokinesis. Chromosomes

More information

Name: Date: Block: 10-2 Cell Division Worksheet

Name: Date: Block: 10-2 Cell Division Worksheet 10-2 Cell Division Worksheet W hat do you think would happen if a cell were simple to split into two, without any advance preparation? Would each daughter cell have everything it needed to survive? Because

More information

KEY CONCEPT Cells have distinct phases of growth, reproduction, and normal functions. The cell cycle has 4 main stages. The cell cycle is a regular

KEY CONCEPT Cells have distinct phases of growth, reproduction, and normal functions. The cell cycle has 4 main stages. The cell cycle is a regular Chapter 10 Chapter 10 KEY CONCEPT Cells have distinct phases of growth, reproduction, and normal functions. The cell cycle has 4 main stages. The cell cycle is a regular pattern of growth, DNA replication,

More information

Cell Cycle/Mitosis -Notes-

Cell Cycle/Mitosis -Notes- Cell Cycle/Mitosis -Notes- LIMITS TO CELL GROWTH The a cell becomes, the more demands the cell places on DNA. Additionally, the cell has more trouble moving enough and wastes across the cell membrane.

More information

Prentice Hall Biology Slide 1 of 38

Prentice Hall Biology Slide 1 of 38 Prentice Hall Biology 1 of 38 2 of 38 In eukaryotes, cell division occurs in two major stages. The first stage, division of the cell nucleus, is called mitosis. The second stage, division of the cell cytoplasm,

More information

Cell Growth, Division, and Reproduction

Cell Growth, Division, and Reproduction Cell Growth, Division, and Reproduction Why are cells small? What are some of the difficulties a cell faces as it increases in size? Difficulties Larger Cells Have: More demands on its DNA Less efficient

More information

Unit 4 Student Notes Cell Cycle

Unit 4 Student Notes Cell Cycle Name Date Unit 4 Student Notes Cell Cycle B-2.6 Summarize the characteristics of the cell cycle: interphase (called G1, S, G2); the phases of mitosis (called prophase, metaphase, anaphase, and telophase);

More information

Creating Identical Body Cells

Creating Identical Body Cells Creating Identical Body Cells 5.A Students will describe the stages of the cell cycle, including DNA replication and mitosis, and the importance of the cell cycle to the growth of organisms 5.D Students

More information

Chapter 10. Cell Growth and Division

Chapter 10. Cell Growth and Division Chapter 10 Cell Growth and Division Cell Growth A. Limits to Cell Growth 1. Two main reasons why cells divide: a. Demands on DNA as the cell get too large Cell Growth b. Moving nutrients and waste across

More information

Chapter 10 Cell Cycle

Chapter 10 Cell Cycle Chapter 10 Cell Cycle Chapter 10 Cell Cycle Grade:«grade» Subject:Biology Date:«date» 1 As a cell becomes larger, its surface area increases faster than its volume. 2 As a cell becomes larger, its volume

More information

Unit 6: Study Guide Cell Division. diploid gene allele interphase (G1, S, G2) prophase metaphase anaphase

Unit 6: Study Guide Cell Division. diploid gene allele interphase (G1, S, G2) prophase metaphase anaphase Unit 6: Study Guide Cell Division 1. Define: chromatin chromosome chromatid pair (sister chromatid) centromere spindle fibers haploid diploid gene allele interphase (G1, S, G2) prophase metaphase anaphase

More information

CELL GROWTH & DIVISION 10-1 & 10-2

CELL GROWTH & DIVISION 10-1 & 10-2 Image from: http://www.bcps.org/offices/lis/models/life/images/grow.jpg CELL GROWTH & DIVISION 10-1 & 10-2 Image by Riedell 2 Reasons why cells divide 1. DNA OVERLOAD As cell grows bigger demand on DNA

More information

Mitosis & Meiosis. Diploid cells- (2n)- a cell that has 2 of each chromosome - 1 from mom, 1 from dad = 1 pair

Mitosis & Meiosis. Diploid cells- (2n)- a cell that has 2 of each chromosome - 1 from mom, 1 from dad = 1 pair Mitosis & Meiosis Diploid cells- (2n)- a cell that has 2 of each chromosome - 1 from mom, 1 from dad = 1 pair The pair is called homologous chromosomes The homologous chromosomes contain the same gene

More information

The Cell Cycle CHAPTER 12

The Cell Cycle CHAPTER 12 The Cell Cycle CHAPTER 12 The Key Roles of Cell Division cell division = reproduction of cells All cells come from pre-exisiting cells Omnis cellula e cellula Unicellular organisms division of 1 cell reproduces

More information

meiosis asexual reproduction CHAPTER 9 & 10 The Cell Cycle, Meiosis & Sexual Life Cycles Sexual reproduction mitosis

meiosis asexual reproduction CHAPTER 9 & 10 The Cell Cycle, Meiosis & Sexual Life Cycles Sexual reproduction mitosis meiosis asexual reproduction CHAPTER 9 & 10 The Cell Cycle, Meiosis & Sexual Sexual reproduction Life Cycles mitosis Chromosomes Consists of a long DNA molecule (represents thousands of genes) Also consists

More information

Chapter 10 Cell Growth and Division

Chapter 10 Cell Growth and Division Chapter 10 Cell Growth and Division 10 1 Cell Growth 2 Limits to Cell Growth The larger a cell becomes, the more demands the cell places on its DNA. In addition, the cell has more trouble moving enough

More information

CELL GROWTH & DIVISION

CELL GROWTH & DIVISION CELL GROWTH & DIVISION 2 Reasons why cells divide 1. DNA OVERLOAD As cell grows bigger demand on DNA genetic library becomes too great Ex: Small town library has 1000 books. As town grows and more people

More information

Almost every cell in the human body has an identical set of 46 chromosomes, produced through the process of mitosis.

Almost every cell in the human body has an identical set of 46 chromosomes, produced through the process of mitosis. M I T O S I S Mitosis Mitosis is the type of cell division that occurs for growth (adding new cells) and repair (replacing old or damaged cells). It results in two daughter cells that have identical chromosomes

More information

Cell Growth, Division, & Reproduction

Cell Growth, Division, & Reproduction Cell Growth, Division, & Reproduction Two main reasons why cells divide rather than continue growing: A larger cell places more demand on the DNA. When a cell s size increases, its DNA does not & the extra

More information

MITOSIS AND THE CELL CYCLE PowerPoint Notes

MITOSIS AND THE CELL CYCLE PowerPoint Notes 1 Name: Date: MITOSIS AND THE CELL CYCLE PowerPoint Notes THE FUNCTIONS OF CELL DIVISION 1. Cell division is vital for all. living organisms This is the only process that can create. new cells 2. Cell

More information

NOTES: Cell Growth and Division. centriole spindle prophase metaphase anaphase telophase cytokinesis

NOTES: Cell Growth and Division. centriole spindle prophase metaphase anaphase telophase cytokinesis NOTES: 10.1 10.2 Cell Growth and Division centriole spindle prophase metaphase anaphase telophase cytokinesis How big do you think the largest cell is? Yolk of ostrich egg ~8 cm in diameter Average cell

More information

CELL CYCLE INTRODUCTION PART I ANIMAL CELL CYCLE INTERPHASE EVOLUTION/HEREDITY UNIT. Activity #3

CELL CYCLE INTRODUCTION PART I ANIMAL CELL CYCLE INTERPHASE EVOLUTION/HEREDITY UNIT. Activity #3 AP BIOLOGY EVOLUTION/HEREDITY UNIT Unit 1 Part 3 Chapter 12 Activity #3 INTRODUCTION CELL CYCLE NAME DATE PERIOD The nuclei in cells of eukaryotic organisms contain chromosomes with clusters of genes,

More information

Mitosis: Cell Division

Mitosis: Cell Division Do Now: What process do you think this cartoon is describing? Mitosis: Cell Division Key Points On Cell Division Species must reproduce in order to survive from generation to generation. All living things

More information

Nucleus. centriole spindle prophase metaphase anaphase telophase cytokinesis

Nucleus. centriole spindle prophase metaphase anaphase telophase cytokinesis Nucleus VOCABULARY: chromatid centromere interphase cell cycle mitosis centriole spindle prophase metaphase anaphase telophase cytokinesis How big do you think the largest cell is? Yolk of ostrich egg

More information

3.What is the advantage of cells being small? If cells are small, materials can be distributed to all parts of the cell quickly.

3.What is the advantage of cells being small? If cells are small, materials can be distributed to all parts of the cell quickly. Materials move through cells by diffusion. Oxygen and food move into cells, while waste products move out of cells. How does the size of a cell affect how efficiently materials get to all parts of a cell?

More information

Cell Division. The Process of Cell Division Section Section 10.2: The Process of Cell Division 12/8/2010

Cell Division. The Process of Cell Division Section Section 10.2: The Process of Cell Division 12/8/2010 The Process of Cell Division Section 10.2 Biology B Section 10.2: The Process of Cell Division The student will investigate and understand common mechanisms of inheritance and protein synthesis. Key concepts

More information

9 The Cell Cycle CAMPBELL BIOLOGY IN FOCUS. Urry Cain Wasserman Minorsky Jackson Reece

9 The Cell Cycle CAMPBELL BIOLOGY IN FOCUS. Urry Cain Wasserman Minorsky Jackson Reece CAMPBELL BIOLOGY IN FOCUS Urry Cain Wasserman Minorsky Jackson Reece 9 The Cell Cycle Lecture Presentations by Kathleen Fitzpatrick and Nicole Tunbridge 2014 Pearson Education, Inc. Cell division plays

More information

Cellular Reproduction, Part 1: Mitosis Lecture 10 Fall 2008

Cellular Reproduction, Part 1: Mitosis Lecture 10 Fall 2008 Cell Theory 1 Cellular Reproduction, Part 1: Mitosis Lecture 10 Fall 2008 Cell theory: All organisms are made of cells All cells arise from preexisting cells How do new cells arise? Cell division the reproduction

More information

Mitosis THE CELL CYCLE. In unicellular organisms, division of one cell reproduces the entire organism Multicellular organisms use cell division for..

Mitosis THE CELL CYCLE. In unicellular organisms, division of one cell reproduces the entire organism Multicellular organisms use cell division for.. Mitosis THE CELL CYCLE In unicellular organisms, division of one cell reproduces the entire organism Multicellular organisms use cell division for.. Development from a fertilized cell Growth Repair Cell

More information

Unit 6: CELL DIVISION PACKET

Unit 6: CELL DIVISION PACKET Unit 6: CELL DIVISION PACKET This packet is designed to help you understand several concepts about Cell Division. As you practice the exercises on each handout, you will be able to: Use a model to illustrate

More information

BIOLOGY LTF DIAGNOSTIC TEST CELL CYCLE & MITOSIS

BIOLOGY LTF DIAGNOSTIC TEST CELL CYCLE & MITOSIS Biology Multiple Choice 016044 BIOLOGY LTF DIAGNOSTIC TEST CELL CYCLE & MITOSIS TEST CODE: 016044 Directions: Each of the questions or incomplete statements below is followed by five suggested answers

More information

The Cell Cycle. Packet #9. Thursday, August 20, 2015

The Cell Cycle. Packet #9. Thursday, August 20, 2015 1 The Cell Cycle Packet #9 2 Introduction Cell Cycle An ordered sequence of events in the life of a dividing eukaryotic cell and is a cellular asexual reproduction. The contents of the parent s cell nucleus

More information

BIOLOGY - CLUTCH CH.12 - CELL DIVISION.

BIOLOGY - CLUTCH CH.12 - CELL DIVISION. !! www.clutchprep.com CONCEPT: CELL DIVISION Cell division is the process by which one cell splits into two or more daughter cells. Cell division generally requires that cells produce enough materials,

More information

Chapter 8: Cellular Reproduction

Chapter 8: Cellular Reproduction Chapter 8: Cellular Reproduction 1. The Cell Cycle 2. Mitosis 3. Meiosis 2 Types of Cell Division 2n 1n Mitosis: occurs in somatic cells (almost all cells of the body) generates cells identical to original

More information

Cell Division. Learning Objectives: Introduction. Revised Fall 2018

Cell Division. Learning Objectives: Introduction. Revised Fall 2018 Revised Fall 2018 Cell Division Learning Objectives: 1. Define cell cycle and the ordered sequence of events in the cell cycle (Interphase and The divisional phase or M phase) 2. Explain the stages in

More information

Biology is the only subject in which multiplication is the same thing as division

Biology is the only subject in which multiplication is the same thing as division Biology is the only subject in which multiplication is the same thing as division 2007-2008 The Cell Cycle: Cell Growth, Cell Division 2007-2008 Where it all began You started as a cell smaller than a

More information

3/19/17. Chromosomes. Chromosome Structure. Chromosome Structure. Chromosome Structure. Chapter 10: Cell Growth & Division

3/19/17. Chromosomes. Chromosome Structure. Chromosome Structure. Chromosome Structure. Chapter 10: Cell Growth & Division Chapter 10: Cell Growth & Division Section 2: The Process of Cell Division Chromosomes DNA (deoxyribonucleic acid) a molecule that stores genetic information, which controls the development and functioning

More information

Cell Size Limitations

Cell Size Limitations Cell Size Limitations Cells come in a wide variety of sizes and shapes. Considering this wide range of cells sizes, why then can t most organisms be just one giant cell? Diffusion limits cell size Although

More information

8.4 The cell cycle multiplies cells. 8.4 The cell cycle multiplies cells

8.4 The cell cycle multiplies cells. 8.4 The cell cycle multiplies cells 8.4 The cell cycle multiplies cells! Cell division is a highly orchestrated process! The cell cycle is an ordered sequence of events that extends from the time a cell is first formed from a dividing parent

More information

Stages of Mitosis. Introduction

Stages of Mitosis. Introduction Name: Due: Stages of Mitosis Introduction Mitosis, also called karyokinesis, is division of the nucleus and its chromosomes. It is followed by division of the cytoplasm known as cytokinesis. Both mitosis

More information

Cell Division and Mitosis

Cell Division and Mitosis Chromatin-Uncoiled DNA during interphase Cell Division and Mitosis Chromosomes-Tightly coiled DNA Chromatid-One half of a duplicated chromosome. Each is identical and called sister chromatids Centromere-The

More information

Omnis cellula e cellula

Omnis cellula e cellula Chapter 12 The Cell Cycle Omnis cellula e cellula 1855- Rudolf Virchow German scientist all cells arise from a previous cell Every cell from a cell In order for this to be true, cells must have the ability

More information

MITOSIS AND THE CELL CYCLE PowerPoint Notes

MITOSIS AND THE CELL CYCLE PowerPoint Notes 1 Name: Date: MITOSIS AND THE CELL CYCLE PowerPoint Notes THE FUNCTIONS OF CELL DIVISION 1. Cell division is vital for all. This is the process that can create. 2. Cell Division always involves main processes:

More information

Cell Growth and Division

Cell Growth and Division Cell Growth and Division Things to ponder When living things grow, what happens to its cells?? OR? Things to ponder When living things grow, what happens to its cells? For example: When a 7lb baby grows

More information

Part II The Cell Cell Division, Chapter 2 Outline of class notes

Part II The Cell Cell Division, Chapter 2 Outline of class notes Part II The Cell Cell Division, Chapter 2 Outline of class notes 1 Cellular Division Overview Types of Cell Division Chromosomal Number The Cell Cycle Mitoses Cancer Cells In Vitro Fertilization Infertility

More information

KEY CONCEPT Cells have distinct phases of growth, reproduction, and normal functions.

KEY CONCEPT Cells have distinct phases of growth, reproduction, and normal functions. 5.1 The Cell Cycle KEY CONCEPT Cells have distinct phases of growth, reproduction, and normal functions. Objective: Cells have distinct phases of growth, reproduction and normal functions. APK: Why do

More information

Unduplicated. Chromosomes. Telophase

Unduplicated. Chromosomes. Telophase 10-2 Cell Division The Cell Cycle Interphase Mitosis Prophase Cytokinesis G 1 S G 2 Chromatin in Parent Nucleus & Daughter Cells Chromatin Daughter Nuclei Telophase Mitotic Anaphase Metaphase Use what

More information

Chapter 5: Cell Growth and Division

Chapter 5: Cell Growth and Division Chapter 5: Cell Growth and Division 1 Background Info Formation of New Cells ~2 trillion cells formed/day in human body ~25 million cells/second Cell division = cell reproduction DNA must be copied before

More information

APGRU4L1 Chap 12 Extra Reading Cell Cycle and Mitosis

APGRU4L1 Chap 12 Extra Reading Cell Cycle and Mitosis APGRU4L1 Chap 12 Extra Reading Cell Cycle and Mitosis Dr. Ramesh Biology is the only subject in which multiplication is the same thing as division 2007-2008 The Cell Cycle: Cell Growth, Cell Division 2007-2008

More information

Cell Growth and Division

Cell Growth and Division Cell Growth and Division CHAPTER 10 EQ Why do cells grow and divide? DID YOU KNOW THAT The adult human body produces roughly 2 TRILLION cells every day. WHY DO CELLS REPRODUCE? So that the organism can

More information

11/13/2013. Cell Size Limitations. Diffusion limits cell size. Surface area-to-volume ratio

11/13/2013. Cell Size Limitations. Diffusion limits cell size. Surface area-to-volume ratio Cell Size Limitations Section Objectives Sequence the events of the cell cycle. Relate the function of a cell to its organization in tissues, organs, and organ systems. Cells come in a wide variety of

More information

The Cell Cycle. Chapter 12. Biology. Edited by Shawn Lester. Eighth Edition Neil Campbell and Jane Reece. PowerPoint Lecture Presentations for

The Cell Cycle. Chapter 12. Biology. Edited by Shawn Lester. Eighth Edition Neil Campbell and Jane Reece. PowerPoint Lecture Presentations for Chapter 12 The Cell Cycle Edited by Shawn Lester PowerPoint Lecture Presentations for Biology Eighth Edition Neil Campbell and Jane Reece Lectures by Chris Romero, updated by Erin Barley with contributions

More information

B.5ABCD Cell Differentiation

B.5ABCD Cell Differentiation B.5ABCD Cell Differentiation Picture Vocabulary gene A segment of DNA nucleotides that codes for a specific protein to be produced and leads to the expression of a hereditary trait or characteristic cell

More information

Biology is the only subject in which multiplication is the same thing as division. AP Biology

Biology is the only subject in which multiplication is the same thing as division. AP Biology Biology is the only subject in which multiplication is the same thing as division Chapter 12. The Cell Cycle: Cell Growth, Cell Division Where it all began You started as a cell smaller than a period at

More information

Section Cell Growth. A. Limits to Cell Growth 1. DNA Overload 2. Exchanging Materials 3. Ratio of Surface Area to Volume 4.

Section Cell Growth. A. Limits to Cell Growth 1. DNA Overload 2. Exchanging Materials 3. Ratio of Surface Area to Volume 4. Getting Through Materials move through cells by diffusion. Oxygen and food move into cells, while waste products move out of cells. How does the size of a cell affect how efficiently materials get to all

More information

U3.2.3: Eukaryotic chromosomes are linear DNA molecules associated with histone proteins. (Oxford Biology Course Companion page 151).

U3.2.3: Eukaryotic chromosomes are linear DNA molecules associated with histone proteins. (Oxford Biology Course Companion page 151). Cell Division Study Guide U3.2.3: Eukaryotic chromosomes are linear DNA molecules associated with histone proteins. (Oxford Biology Course Companion page 151). 1. Describe the structure of eukaryotic DNA

More information

Mitosis/Meiosis Simulation Activities

Mitosis/Meiosis Simulation Activities Mitosis/Meiosis Simulation Activities In this simulation, you will demonstrate an understanding of mitosis, meiosis, segregation, independent assortment, and crossing over, all processes involved with

More information

CHAPTER 8: CELL GROWTH AND DIVISION 8-1: CELL GROWTH 8-2: CELL DIVISION: MITOSIS AND CYTOKINESIS

CHAPTER 8: CELL GROWTH AND DIVISION 8-1: CELL GROWTH 8-2: CELL DIVISION: MITOSIS AND CYTOKINESIS CHAPTER 8: CELL GROWTH AND DIVISION 8-1: CELL GROWTH 8-2: CELL DIVISION: MITOSIS AND CYTOKINESIS 1 LEARNING OBJECTIVES You should be able to: Give two physical reasons why mitosis must occur. Draw a chromosome

More information

Mitosis Flap Book Excludes Prometaphase

Mitosis Flap Book Excludes Prometaphase Mitosis Flap Book Excludes Prometaphase TEACHER S INSTRUCTIONS 1) Choose one of the foldables from the choices below. Three Color Choices Black & White Cells without Chromosomes Choose this option if you

More information

The Cell Cycle MITOSIS

The Cell Cycle MITOSIS The Cell Cycle MITOSIS Outcomes 1. Explain the events of the cell cycle Interphase Mitosis Prophase Metaphase Anaphase Telophase Cytokinesis 2. Use a simulation to demonstrate the behaviour of chromosomes

More information

Biology is the only subject in which multiplication is the same thing as division

Biology is the only subject in which multiplication is the same thing as division Biology is the only subject in which multiplication is the same thing as division The Cell Cycle: Cell Growth, Cell Division 2007-2008 2007-2008 Getting from there to here Going from egg to baby. the original

More information

Cell Division. Chromosome structure. Made of chromatin (mix of DNA and protein) Only visible during cell division

Cell Division. Chromosome structure. Made of chromatin (mix of DNA and protein) Only visible during cell division Chromosome structure Made of chromatin (mix of DNA and protein) Only visible during cell division Chromosome structure The DNA in a cell is packed into an elaborate, multilevel system of coiling and folding.

More information

The larger a cell becomes: 1) the more demands the cell places on its. 2) the more trouble the cell has moving enough and across the cell membrane.

The larger a cell becomes: 1) the more demands the cell places on its. 2) the more trouble the cell has moving enough and across the cell membrane. 10 1 Cell Growth Why are cells small? The larger a cell becomes: 1) the more demands the cell places on its. 2) the more trouble the cell has moving enough and across the cell membrane. The rate at which

More information

Breaking Up is Hard to Do (At Least in Eukaryotes) Mitosis

Breaking Up is Hard to Do (At Least in Eukaryotes) Mitosis Breaking Up is Hard to Do (At Least in Eukaryotes) Mitosis Chromosomes Chromosomes were first observed by the German embryologist Walther Fleming in 1882. Chromosome number varies among organisms most

More information

Chapter 2. Mitosis and Meiosis

Chapter 2. Mitosis and Meiosis Chapter 2. Mitosis and Meiosis Chromosome Theory of Heredity What structures within cells correspond to genes? The development of genetics took a major step forward by accepting the notion that the genes

More information

Biology is the only subject in which multiplication is the same thing as division

Biology is the only subject in which multiplication is the same thing as division Biology is the only subject in which multiplication is the same thing as division 2007-2008 The Cell Cycle: Cell Growth, Cell Division 2007-2008 Where it all began You started as a cell smaller than a

More information

Cell Cycle Notes --PreAP

Cell Cycle Notes --PreAP Cell Cycle Notes --PreAP I. DNA Deoxyribonucleic acid; located in nucleus A. Long and thread-like DNA in a non-dividing cell B. Thick, short, coiled doubled DNA in a dividing cell chromosome 1. chromosome

More information

Chapter 12. The Cell Cycle

Chapter 12. The Cell Cycle Chapter 12 The Cell Cycle The Key Roles of Cell Division The ability of organisms to produce more of their own kind is the one characteristic that best distinguishes living things from nonliving things.

More information

CHAPTER 8 CELL REPRODUCTION

CHAPTER 8 CELL REPRODUCTION CHAPTER 8 CELL REPRODUCTION CHROMOSOME STRUCTURE Structures in the nucleus that carry genetic information Composed of DNA coiled around proteins called histones Consists of 2 identical parts called sister

More information

Montana Comprehensive Assessment System (MontCAS, Phase 2)

Montana Comprehensive Assessment System (MontCAS, Phase 2) Montana Comprehensive Assessment System (MontCAS, Phase 2) Criterion-Referenced Test (CRT) Common Constructed-Response Item Release Science, Grade 10 2008 OFFICE OF PUBLIC INSTRUCTION 2008 Measured Progress.

More information

Biology is the only subject in which multiplication is the same thing as division

Biology is the only subject in which multiplication is the same thing as division Biology is the only subject in which multiplication is the same thing as division 2007-2008 The Cell Cycle: Cell Growth, Cell Division 2007-2008 Getting from there to here Going from egg to baby. the original

More information

NOTES- CHAPTER 6 CHROMOSOMES AND CELL REPRODUCTION

NOTES- CHAPTER 6 CHROMOSOMES AND CELL REPRODUCTION NOTES- CHAPTER 6 CHROMOSOMES AND CELL REPRODUCTION Section I Chromosomes Formation of New Cells by Cell Division New cells are formed when old cells divide. 1. Cell division is the same as cell reproduction.

More information