Chapter 10. Cell Cycle - Mitosis

Size: px
Start display at page:

Download "Chapter 10. Cell Cycle - Mitosis"

Transcription

1 Chapter 10 Cell Cycle - Mitosis

2 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 reproduction

3 Cells come from Cells The Cell Theory living things grow by producing more cells cells do not normally become bigger because there would be more demands placed on the cell and the cell would have to expend more energy to maintain itself. When a cell undergoes reproduction, or cell division, two daughter cells are produced that are genetically identical to each other to the parent cell.

4 Cell Division In asexual reproduction, single-celled organisms reproduce by simple cell division there is no fertilization of an egg by a sperm.

5 Division of the Cell Cell division replaces damaged or lost cells permits growth allows for reproduction Before cell division occurs, the cell replicates all of its DNA so that each daughter cell gets the same genetic information as the parent cell

6 Result of DNA replication

7 Chromosomes When the cell divides, the sister chromatids of a duplicated chromosome separate from each other. Once separated, each chromatid goes to each of the 2 new cells and is considered a full-fledged chromosome identical to the original chromosome.

8 Figure 8.UN01 Duplication of all chromosomes Distribution via mitosis Genetically identical daughter cells

9 The Cell Cycle The cell cycle series of events that cells go through as they grow and divide. during the cell cycle a cell grows, prepares for division and divides to form 2 daughter cells, each of which begins the cycle again. The cell cycle consists of two distinct phases: 1. interphase in-between period of growth 2. the mitotic phase cell division

10 The Cell Cycle - Interphase Most of a cell cycle is spent in interphase. During interphase a cell performs its normal functions Replicates all of its DNA sister chromatids doubles everything in its cytoplasm grows in size

11 The Cell Cycle - Interphase Interphase can be broken down into 3 distinct phases 1. G1 phase cells increase in size, make new proteins and organelles 2. S phase chromosomes replicate, DNA synthesis 3. G2 phase completion of organelle production

12 The Cell Cycle The mitotic (M) phase includes two overlapping processes: 1. mitosis, in which the nucleus and its contents divide evenly into two daughter nuclei 2. cytokinesis, in which the cytoplasm is divided in two

13 Mitosis Mitosis consists of four distinct phases: 1. Prophase 2. Metaphase 3. Anaphase 4. Telophase

14 Mitosis 1. Prophase Chromosomes condense and coil more tightly and are visible through a light microscope. Centrioles separate and move to opposite ends of the nucleus. The spindle, which consists of microtubules structures begins to form from the centrioles. Chromosomes become attached to the spindle fibers at the centromere. Nuclear envelope breaks down.

15 Mitosis 2. Metaphase Mitotic spindle is fully formed Chromosomes line up between the two poles of the spindle (between the two centrosomes) Microtubules attached to the centromeres play tug of war keeping the chromosomes in the middle of the cell.

16 Mitosis 3. Anaphase Sister chromatids separate and move toward opposite poles of the cell as the spindle microtubules shorten Microtubules not attached to chromosomes get longer and elongate the cell.

17 Mitosis 4. Telophase Chromosomes have reached the opposite ends of the cell Nuclear envelopes forms Chromosomes uncoil Spindle dissapears

18 Mitosis Cytokinesis usually begins during telophase, divides the cytoplasm is different in plant and animal cells.

19 Cytokinesis In animal cells, cytokinesis is known as cleavage begins with the appearance of a cleavage furrow, an indentation at the equator of the cell.

20 Cytokinesis In plant cells, cytokinesis begins when vesicles containing cell wall material collect at the middle of the cell and then fuse, forming a membranous disk called the cell plate.

21 Regulating the Cell Cycle Certain cells in the body do not divide at all once they are formed such as muscle cells nerve cells Other cells grow and divide rapidly such as skin bone marrow blood

22 Controls on Cell Division Normal plant and animal cells have a cell cycle control system that consists of specialized proteins called cyclins, which send stop and go-ahead signals at certain key points during the cell cycle.

23 Uncontrolled Cell Growth When cells lose the ability to control growth the consequences can be severe. Cancer is a disorder in which cells lose the ability to regulate cell division. Cancer cells do not respond to the signals that regulate the growth of most cells. Cancer cells divide rapidly and form tumors which can be benign or malignant.

24 What Is Cancer? The spread of cancer cells beyond their original site of origin is metastasis. Malignant tumors can spread to other parts of the body and interrupt normal body functions. A person with a malignant tumor is said to have cancer.

25 Figure 8.9 Lymph vessels Tumor Blood vessel A tumor grows from a single cancer cell. Glandular tissue Cancer cells invade neighboring tissue. Metastasis: Cancer cells spread through lymph and blood vessels to other parts of the body.

26 Cancer Prevention and Survival Certain behaviors can decrease the risk of cancer: not smoking exercising adequately avoiding exposure to the sun eating a high-fiber, low-fat diet performing self-exams regularly visiting a doctor to identify tumors early

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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 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

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

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

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

Science 9- Mr. Klasz

Science 9- Mr. Klasz Science 9- Mr. Klasz Asexual reproduction requires only one parent. The offspring produced are identical to the parent. Asexual reproduction occurs in our somatic cells. This means all of our cells except

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

-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

Part I: The Cell Cycle

Part I: The Cell Cycle Cellular Differentiation Part I: The Cell Cycle During your lifetime, trillions of your cells will undergo the cell cycle. This process allows you to grow, heal, and maintain your vital tissues and organs.

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 The Cell Cycle Biology is the only subject in which multiplication is the same thing as division Why do cells divide? For reproduction asexual reproduction For growth one-celled organisms from fertilized

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

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

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. 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

Cell plate Carcinogen Oncogenes. Haploid cell Diploid cell Chromosome. Telophase Keywords Mitosis

Cell plate Carcinogen Oncogenes. Haploid cell Diploid cell Chromosome. Telophase Keywords Mitosis Cell Division Cell plate Carcinogen Oncogenes Haploid cell Diploid cell Chromosome Gene Interphase Anaphase Metaphase Telophase Keywords Mitosis Meiosis Centromere Cleavage furrow Middle lamella What is

More information

Cell Division (Mitosis)

Cell Division (Mitosis) Cell Division (Mitosis) Chromosomes The essential part of a chromosome is a single very long strand of DNA. This DNA contains all the genetic information for creating and running the organism. Each chromosome

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

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

(a) Reproduction. (b) Growth and development. (c) Tissue renewal

(a) Reproduction. (b) Growth and development. (c) Tissue renewal 100 µm 200 µm 20 µm (a) Reproduction (b) Growth and development (c) Tissue renewal 1 20 µm 2 0.5 µm Chromosomes DNA molecules Chromosome arm Centromere Chromosome duplication (including DNA synthesis)

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

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 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

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

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, 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

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

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

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

The Cell Cycle. Chapter 12. Biology Eighth Edition Neil Campbell and Jane Reece. PowerPoint Lecture Presentations for Chapter 12 The Cell Cycle PowerPoint Lecture Presentations for Biology Eighth Edition Neil Campbell and Jane Reece Lectures by Chris Romero, updated by Erin Barley with contributions from Joan Sharp 1

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

The Cell Cycle. Dr. SARRAY Sameh, Ph.D

The Cell Cycle. Dr. SARRAY Sameh, Ph.D The Cell Cycle Dr. SARRAY Sameh, Ph.D Overview When an organism requires additional cells (either for growth or replacement of lost cells), new cells are produced by cell division (mitosis) Somatic cells

More information

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

The Cell Cycle. Chapter 12. PowerPoint Lecture Presentations for Biology Eighth Edition Neil Campbell and Jane Reece Chapter 12 The Cell Cycle PowerPoint Lecture Presentations for Biology Eighth Edition Neil Campbell and Jane Reece Lectures by Chris Romero, updated by Erin Barley with contributions from Joan Sharp Overview:

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 10 Chromosomes and Cell Reproduction

Chapter 10 Chromosomes and Cell Reproduction Chapter 10 Chromosomes and Cell Reproduction Chromosomes Organisms grow by dividing of cells Binary Fission form of asexual reproduction that produces identical offspring (Bacteria) Eukaryotes have two

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

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

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

Mitosis: cell division that forms identical daughter cells with the same number of chromosomes as the parent cell (duplicate and divide)

Mitosis: cell division that forms identical daughter cells with the same number of chromosomes as the parent cell (duplicate and divide) Mitosis: cell division that forms identical daughter cells with the same number of chromosomes as the parent cell (duplicate and divide) Meiosis: cell division that forms daughter cells with half the number

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

Cellular Reproduction, Part 2: Meiosis Lecture 10 Fall 2008

Cellular Reproduction, Part 2: Meiosis Lecture 10 Fall 2008 Mitosis & 1 Cellular Reproduction, Part 2: Lecture 10 Fall 2008 Mitosis Form of cell division that leads to identical daughter cells with the full complement of DNA Occurs in somatic cells Cells of body

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. 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

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

Ploidy and Human Cell Types. Cell Cycle and Mitosis. DNA and Chromosomes. Where It All Began 11/19/2014. Chapter 12 Pg

Ploidy and Human Cell Types. Cell Cycle and Mitosis. DNA and Chromosomes. Where It All Began 11/19/2014. Chapter 12 Pg Ploidy and Human Cell Types Cell Cycle and Mitosis Chapter 12 Pg. 228 245 Cell Types Somatic cells (body cells) have 46 chromosomes, which is the diploid chromosome number. A diploid cell is a cell with

More information

LECTURE PRESENTATIONS

LECTURE PRESENTATIONS LECTURE PRESENTATIONS For CAMPBELL BIOLOGY, NINTH EDITION Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson Chapter 12 The Cell Cycle Lectures by Erin

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 & 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

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

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

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

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

More information

Monday, October 6 Put these items into the appropriate category:

Monday, October 6 Put these items into the appropriate category: Monday, October 6 Put these items into the appropriate category: Active Transport Facilitated Diffusion Osmosis Simple Diffusion The smell of rotten eggs spreading through the room Requires ATP expenditure

More information

Mitosis and the Cell Cycle

Mitosis and the Cell Cycle Mitosis and the Cell Cycle Chapter 12 The Cell Cycle: Cell Growth & Cell Division Where it all began You started as a cell smaller than a period at the end of a sentence Getting from there to here Cell

More information

The Cell Cycle 4/10/12. Chapter 12. Overview: The Key Roles of Cell Division

The Cell Cycle 4/10/12. Chapter 12. Overview: The Key Roles of Cell Division LECTURE PRESENTATIONS For CAMPBELL BIOLOGY, NINTH EDITION Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson Chapter 12 The Cell Cycle Lectures by Erin

More information

Genes and Proteins. Key points: The DNA must be copied and then divided exactly so that each cell gets an identical copy.

Genes and Proteins. Key points: The DNA must be copied and then divided exactly so that each cell gets an identical copy. Mitosis Genes and Proteins Proteins do the work of the cell: growth, maintenance, response to the environment, reproduction, etc. Proteins are chains of amino acids. The sequence of amino acids in each

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

LECTURE PRESENTATIONS

LECTURE PRESENTATIONS LECTURE PRESENTATIONS For CAMPBELL BIOLOGY, NINTH EDITION Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson Chapter 12 The Cell Cycle Lectures by Erin

More information

Genetics and Cellular Function

Genetics and Cellular Function Genetics and Cellular Function DNA replication and the cell cycle Mitosis Mitosis Mitosis: division of cells that results in daughter cells with the same the genetic information that the original cell

More information

Name Date Class. Interphase. (1) The. grows. DNA is duplicated.

Name Date Class. Interphase. (1) The. grows. DNA is duplicated. Concept Mapping The Cell Cycle Complete the cycle map about the cell cycle. These terms may be used more than once: cell, cytoplasm, metaphase, nuclear membrane, nucleoli, poles. (1) The Interphase grows.

More information

Cell division functions in 1. reproduction, 2. growth, and 3. repair

Cell division functions in 1. reproduction, 2. growth, and 3. repair Cell division functions in 1. reproduction, 2. growth, and 3. repair What do you think you are looking at here??? Can something like you or I do this??? Fig. 12.1 How did you start out? How did you grow?

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

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

Section 10 1 Cell Growth (pages )

Section 10 1 Cell Growth (pages ) Chapter 10 Cell Growth and Division Section 10 1 Cell Growth (pages 241 243) Key Concept What problems does growth cause for cells? Limits to Cell Growth (pages 241 243) 1 What are two reasons why cells

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

General Biology. Overview: The Key Roles of Cell Division The continuity of life is based upon the reproduction of cells, or cell division

General Biology. Overview: The Key Roles of Cell Division The continuity of life is based upon the reproduction of cells, or cell division General Biology Course No: BNG2003" Credits: 3.00 " " " 8. The Cell Cycle Prof. Dr. Klaus Heese Overview: The Key Roles of Cell Division The continuity of life is based upon the reproduction of cells,

More information

Cellular Reproduction Chapter 8

Cellular Reproduction Chapter 8 Cellular Reproduction Chapter 8 1. Importance of Cell Division 2. Eukaryotic Cell Cycle 3. Eukaryotic Chromosomes 4. Mitosis 5. Cytokinesis in animal and plant cells 6. Sexual Iife cycle 7. Meiosis 8.

More information

General Biology. Overview: The Key Roles of Cell Division. Unicellular organisms

General Biology. Overview: The Key Roles of Cell Division. Unicellular organisms General Biology Course No: BNG2003 Credits: 3.00 8. The Cell Cycle Prof. Dr. Klaus Heese Overview: The Key Roles of Cell Division The continuity of life is based upon the reproduction of cells, or cell

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

Today you need: notebook, pen or pencil, textbook, colors to share, colored paper foldable. later

Today you need: notebook, pen or pencil, textbook, colors to share, colored paper foldable. later CELL DIVISION Objectives Students will learn what causes a cell to divide and how it happens. They will explore all parts of the cell cycle and mitosis. They will discuss what happens when this process

More information

Histones- protein molecules that are used to fold and package DNA into chromosomes.

Histones- protein molecules that are used to fold and package DNA into chromosomes. Chromosome- a portion of the DNA in a cell, a chromosome is created when the DNA segment coils around histones then twists further to create a long twisted mass. Histones- protein molecules that are used

More information

Mitosis Notes AP Biology Mrs. Laux

Mitosis Notes AP Biology Mrs. Laux I. Cell Cycle-includes interphase and mitosis (IPPMAT) A. Interphase 1. accounts for 90% of the cycle 2. cell grows and copies its chromosomes in preparation for cell division 3. produces proteins and

More information

The Cell Cycle and How Cells Divide

The Cell Cycle and How Cells Divide The Cell Cycle and How Cells Divide 1 Phases of the Cell Cycle The cell cycle consists of Interphase normal cell activity The mitotic phase cell divsion INTERPHASE Growth G 1 (DNA synthesis) Growth G 2

More information

LECTURE PRESENTATIONS

LECTURE PRESENTATIONS LECTURE PRESENTATIONS For CAMPBELL BIOLOGY, NINTH EDITION Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson Chapter 12 The Cell Cycle Lectures by Erin

More information

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

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

More information

Cell Cycle. Cell Cycle the cell s life cycle that extends from one division to the next G1 phase, the first gap phase. S phase, synthesis phase

Cell Cycle. Cell Cycle the cell s life cycle that extends from one division to the next G1 phase, the first gap phase. S phase, synthesis phase Cell Cycle the cell s life cycle that extends from one division to the next G1 phase, the first gap phase Cell Cycle interval between cell division and DNA replication accumulates materials needed to replicate

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

The Cell Cycle CAMPBELL BIOLOGY IN FOCUS SECOND EDITION URRY CAIN WASSERMAN MINORSKY REECE

The Cell Cycle CAMPBELL BIOLOGY IN FOCUS SECOND EDITION URRY CAIN WASSERMAN MINORSKY REECE CAMPBELL BIOLOGY IN FOCUS URRY CAIN WASSERMAN MINORSKY REECE 9 The Cell Cycle Lecture Presentations by Kathleen Fitzpatrick and Nicole Tunbridge, Simon Fraser University SECOND EDITION Overview: The Key

More information

Cell Cycle - Introduction

Cell Cycle - Introduction Cell Cycle - Introduction Key Concepts Cell division results in two identical cells During cell division the ability to organize DNA in time and space (location in the cell) is critical! The mitotic phase

More information