Cell Growth and Division

Size: px
Start display at page:

Download "Cell Growth and Division"

Transcription

1 Cell Growth and Division CHAPTER 10 EQ Why do cells grow and divide?

2 DID YOU KNOW THAT The adult human body produces roughly 2 TRILLION cells every day.

3 WHY DO CELLS REPRODUCE? So that the organism can grow and develop As multicellular organisms grow larger, its cells reproduce and increase in number.

4 WHY DO CELLS REPRODUCE? Replacement of dead/damaged cells To prevent cell overload

5 CELL MEMBRANE OVERLOAD Cell size is limited by the cell membrane (surface area) Everything must enter and leave through the cell membrane. Compared to smaller cells, larger cells must take in more nutrients, process (break down) them, and get rid of more waste. Too large = TRAFFIC JAM!

6 What does the work of cells? What provides the instructions for proteins? DNA Larger cells require more proteins! DNA OVERLOAD Proteins If cell get too large, DNA cannot be copied fast enough to make proteins.

7 DNA OVERLOAD Gene a unit of heredity that consists of DNA that codes for a protein The activity of the cell is directed by the DNA because it contains the instructions for making proteins.

8 CHROMOSOMES OR CHROMATIN??? Chromatin loose and stringy DNA Most of the time DNA exists as chromatin because it is easier to copy the instructions for the proteins when loose.

9 CHROMOSOMES OR CHROMATIN??? Chromosome DNA tightly coiled (wrapped) around proteins called histones When the cell gets ready to reproduce, the chromatin condenses into chromosomes because it is easier to move the chromosomes when they are packed up.

10 CHROMOSOMES OR CHROMATIN??? What form is the DNA in when the cell is dividing? Chromosome What form is the DNA in when it is being used to make proteins? Chromatin

11 CHROMOSOME STRUCTURE Chromatid one of the two strands of a duplicated chromosome A single long molecule of DNA Sister chromatids identical chromosome pairs that are still connected together Centromere the region of the chromosome that holds the sister chromatids together during cell division sister chromatids

12 CHROMOSOME STRUCTURE When sister chromatids are connected, they are considered one chromosome. When sister chromatids are separated during cell division (mitosis), they are considered two individual chromosomes.

13 PREPARING FOR CELL DIVISION Recall All cells are produced by the division of preexisting cells. The parent cell must give each daughter cell all the equipment it needs to survive. Organelles and DNA

14 PROKARYOTIC REPRODUCTION Once a bacterium has doubled in size, the cell will divide. Prokaryotes copy the DNA and divide the cytoplasm. Process called binary fission

15 CELLSALIVE.COM CELLS ALIVE - REVIEW Under the first box Interactive Cell Models Click on PLANT/ANIMAL CELL Click START THE ANIMATION (red box). Follow the directions on the worksheet. Answer the questions on notebook paper (answers only).

16 THE EUKARYOTIC CELL CYCLE Ch. 10 Sec. 2 EQ How does the cell prepare for division?

17 Cell cycle a repeating sequence of cellular growth and division during the life of the cell. EUKARYOTIC CELL CYCLE

18 The cell is not dividing INTERPHASE The cell is growing and preparing to divide How long does interphase last? The majority of the cell s life Skin cells short interphase Nerve cells most of life (most of your life)

19 Divided into 3 parts: G 1 Phase growth S Phase DNA synthesis Synthesis to make G 2 Phase Growth and preparation for division INTERPHASE

20 CELL DIVISION Two Processes: Mitosis and Cytokinesis During these phases, the cell s DNA and cytoplasm divide Cytoplasm includes the fluid and organelles

21 G 1 PHASE Carries out normal cell activities Cell grows by building more organelles DNA exists as chromatin so that it can be used to make proteins Most of a cell s life is spent in this phase Cells that do not divide remain in this phase (G 0 ) Brain cells

22 S (SYNTHESIS) PHASE DNA replicates (gets copied). At the end of S, the nucleus holds twice as much DNA DNA now exists as sister chromatids that are attached at the centromere.

23 G 2 PHASE Cell continues to grow and prepares to divide Special structures (centrioles and microtubules) that help the cell divide are assembled.

24 Mitosis the process of dividing the nucleus into two daughter nuclei Mitosis is divided into 4 phases: prophase metaphase anaphase telophase MITOSIS At the beginning of mitosis (prophase), the DNA is packaged into chromosomes.

25 CYTOKINESIS Cytokinesis the process of separating the organelles and the cytoplasm Occurs during telophase of mitosis.

26 WHERE DO THE NEW CELLS GO? Back to G 1! Start the process again!

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

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

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

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

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

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 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

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

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

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

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

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

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

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. 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

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

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

Cell Division. Introduction. Chromatin, Chromosomes, and Chromatids, Oh My! The Cell Cycle

Cell Division. Introduction. Chromatin, Chromosomes, and Chromatids, Oh My! The Cell Cycle Introduction Cell Division Just like a butterfly passes through different phases (such as caterpillar, chrysalis, and adult butterfly) there are a series of phases in a cell's life as it gets ready to

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

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

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

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

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

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. 1. What is meant by the cell cycle or cell division cycle?

THE CELL CYCLE. 1. What is meant by the cell cycle or cell division cycle? 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 itself. These events can be divided

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

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 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

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

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

NOTES. Cell Cycle & Mitosis

NOTES. Cell Cycle & Mitosis NOTES for Cell Cycle & Mitosis Biology 2016 Johnson I. The Cell Cycle II. http://www.youtube.com/watch?v=q6uckwiifmg (2:15-4:25) III. http://www.cellsalive.com/mitosis.htm A. Limits to Cell Size 1. As

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 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

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

This colorized scanning electron micrograph is showing a white blood cell undergoing cell division.

This colorized scanning electron micrograph is showing a white blood cell undergoing cell division. 10 1 Cell Growth Why are cells small? This colorized scanning electron micrograph is showing a white blood cell undergoing cell division. This relates to cell theory because this is HOW all cells come

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

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

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

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

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

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

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

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 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

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 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

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

5.2. Mitosis and Cytokinesis. Chromosomes condense at the start of mitosis. Connecting

5.2. Mitosis and Cytokinesis. Chromosomes condense at the start of mitosis. Connecting 5.2 Mitosis and Cytokinesis KEY CONCEPT Cells divide during mitosis and cytokinesis. MAIN IDEAS Chromosomes condense at the start of mitosis. Mitosis and cytokinesis produce two genetically identical daughter

More information

Reproduction is a fundamental property of life. Cells are the fundamental unit of life. Reproduction occurs at the cellular level with one mother

Reproduction is a fundamental property of life. Cells are the fundamental unit of life. Reproduction occurs at the cellular level with one mother Cell Division ision Reproduction is a fundamental property of life. Cells are the fundamental unit of life. Reproduction occurs at the cellular level with one mother cell giving rise to two daughter cells.

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

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

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

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

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

Essential Questions. Why are cells relatively small? What are the primary stages of the cell cycle? What are the stages of interphase?

Essential Questions. Why are cells relatively small? What are the primary stages of the cell cycle? What are the stages of interphase? Essential Questions Why are cells relatively small? What are the primary stages of the cell cycle? What are the stages of interphase? Cellular Growth Vocabulary Review selective permeability New cell cycle

More information

5.1. KEY CONCEPT Cells have distinct phases of growth, reproduction, and normal functions. 68 Reinforcement Unit 2 Resource Book

5.1. KEY CONCEPT Cells have distinct phases of growth, reproduction, and normal functions. 68 Reinforcement Unit 2 Resource Book 5.1 THE CELL CYCLE KEY CONCEPT Cells have distinct phases of growth, reproduction, and normal functions. Cells have a regular pattern of growth, DNA duplication, and division that is called the cell cycle.

More information

5.2. Mitosis and Cytokinesis. Chromosomes condense at the start of mitosis.

5.2. Mitosis and Cytokinesis. Chromosomes condense at the start of mitosis. 5.2 Mitosis and Cytokinesis VOCABULARY chromosome histone chromatin chromatid centromere prophase metaphase anaphase telophase Biochemistry As you will learn in the chapter From DNA to Proteins, a nucleotide

More information

BIOLOGY 111. CHAPTER 9: The Links in Life s Chain Genetics and Cell Division

BIOLOGY 111. CHAPTER 9: The Links in Life s Chain Genetics and Cell Division BIOLOGY 111 CHAPTER 9: The Links in Life s Chain Genetics and Cell Division The Links in Life s Chain: Genetics and Cell Division 9.1 An Introduction to Genetics 9.2 An Introduction to Cell Division 9.3

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

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

Mitosis. An Introduction to Genetics. An Introduction to Cell Division

Mitosis. An Introduction to Genetics. An Introduction to Cell Division Mitosis An Introduction to Genetics An Introduction to Cell Division DNA is Packaged in Chromosomes Cell Cycle Mitosis and Cytokinesis Variations in Cell Division Cell Division and Cancer An Introduction

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

Cell Division. During interphase, a cell s DNA is in a loose form called. It condenses into tightly coiled structures called chromosomes during.

Cell Division. During interphase, a cell s DNA is in a loose form called. It condenses into tightly coiled structures called chromosomes during. Cell Division The is a cell s total DNA. Prokaryotes DNA is found mostly in a single called the and also in small circles called. Eukaryotes have several DNA double helices packaged into. During interphase,

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

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

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

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 Growth and Reproduction. Page 201

Cell Growth and Reproduction. Page 201 Cell Growth and Reproduction Page 201 Describe cells that make up a multicellular organisms Comes in wide variety of shapes and sizes Name the cell with the largest diameter. Yolk of an ostrich egg Name

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

8.1 Cellular Transport

8.1 Cellular Transport Ch 8: Cellular Transport and the Cell Cycle 8.1 Cellular Transport Inside This Section... Osmosis Passive vs. Active Transport Transport of Large Particles What is Osmosis? Diffusion of water across a

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

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 Cycle and Mitosis Tutorial

Cell Cycle and Mitosis Tutorial Cell Cycle and Mitosis Tutorial Get Started Interphase Prophase Metaphase Anaphase Telophase Take the Quiz What is the Cell Cycle? All cells go through a series of events in their life. Cells grow, divide,

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

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

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

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

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

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

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 Ch. 10 Where it all began You started as a cell smaller than a period

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

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

Cellular Reproduction

Cellular Reproduction 9 Cellular Reproduction section 1 Cellular Growth Before You Read Think about the life cycle of a human. On the lines below, write some of the stages that occur in the life cycle of a human. In this section,

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 Growth and Division

Cell Growth and Division Name Class Date 10 Cell Growth and Division Big idea Growth, Development, and Reproduction Q: How does a cell produce a new cell? WHAT I KNOW WHAT I LEARNED 10.1 Why do cells divide? 10.2 How do cells

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

BIOLOGY. Cell Cycle - Mitosis. Outline. Overview: The Key Roles of Cell Division. identical daughter cells. I. Overview II.

BIOLOGY. Cell Cycle - Mitosis. Outline. Overview: The Key Roles of Cell Division. identical daughter cells. I. Overview II. 2 Cell Cycle - Mitosis CAMPBELL BIOLOGY TENTH EDITION Reece Urry Cain Wasserman Minorsky Jackson Outline I. Overview II. Mitotic Phase I. Prophase II. III. Telophase IV. Cytokinesis III. Binary fission

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

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

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

Major concepts: Notes: Cell Reproduction: From One Cell to Two. Why do Cells Reproduce?

Major concepts: Notes: Cell Reproduction: From One Cell to Two. Why do Cells Reproduce? Grade 7 Standard: Life Science 1e Students know cells divide to increase their numbers through a process of mitosis, which results in two daughter cells with identical sets of chromosomes. Major concepts:

More information

DR. RAMESH U2 L3. MITOSIS and Cell Cycle

DR. RAMESH U2 L3. MITOSIS and Cell Cycle DR. RAMESH U2 L3 MITOSIS and Cell Cycle Do Now! Directions: Answer the following questions in complete sentences. 1. Describe how bacteria reproduce. Describe how cats reproduce.are there any similarities

More information

Chapter 12 The Cell Cycle: Cell Growth, Cell Division

Chapter 12 The Cell Cycle: Cell Growth, Cell Division Chapter 12 The Cell Cycle: Cell Growth, Cell Division 2007-2008 Where it all began You started as a cell smaller than a period at the end of a sentence And now look at you How did you get from there to

More information

Chapter 6. Cell Reproduction

Chapter 6. Cell Reproduction Chapter 6 Cell Reproduction Chromosomes The growth and development of your body are controlled by instructions contained in your DNA DNA decides what you will be.. DNA & Chromosomes Very long molecules

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

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

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

Pre-Test. 4. Inside of cells, nearly all the genes are located on special structures known as microtubules.

Pre-Test. 4. Inside of cells, nearly all the genes are located on special structures known as microtubules. 1 Pre-Test Directions: Answer each question TRUE OR FALSE. 1. Cells in the bodies of multicelled creatures, such as humans, are reproduced in a way that is very similar to the method used by most protozoa.

More information

Unit 4: Cell Division Guided Notes

Unit 4: Cell Division Guided Notes Unit 4: Cell Division Guided Notes 1 Chromosomes are structures that contain material When Eukaryotes are not dividing, DNA and Proteins are in a mass called: When the cell divides, it condenses and becomes

More information