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

Size: px
Start display at page:

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

Transcription

1

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

3 Chromosomes Are made of chromatin: a mass of genetic material composed of DNA and proteins (called histones) ) that condense to form chromosomes in the cell's nucleus.

4 What exactly are chromosomes? Structures s within a cell that carry genetic material in the form of threadlike strands of DNA bonded to histones in the nucleus of eukaryotic cells Rod-shaped Each chromosome consists of two indentical halves called sister chromatids which are attached together at a centromere

5 Chromosome Numbers Each species has a set number of chromosomes in every cell Higher number of chromosomes does NOT mean it is a more complicated species! Humans have 46 chromosomes, but crayfish have 200!

6 Cell Division in Eukaryotes!!! Division of the nucleus and the cytoplasm Involves only one cycle of cell division The division of regular cells 1 cell and 1 set of chromosomes become 2 identical cells (and two identical sets of chromosomes) called daughter cells

7 Introduction to Mitosis Apoptosis cell death

8 The series of events involving the growth, replication, and division of a eukaryotic cell

9 Mitosis Division of cells and cell nuclei It s s divided into 4 phases: Prophase, Metaphase, Anaphase, Telophase

10 Before Cell Division Interphase time for growth and regular cell activity before cell division; consists of three phases Most of a cell s s life is spent in Interphase. Interphase is NOT part of mitosis!

11 Interphase Phases G1 (Gap 1) is when the cell grows and functions normally and during this time, protein synthesis occurs and the cell grows producing more organelles, increasing the volume of the cytoplasm. Synthesis (S) is when the cell duplicates its DNA G2 (Gap 2) is where the cell resumes its growth in preparation for mitosis

12

13 Prophase First stage of Mitosis Chromatin condenses into rod- shaped chromosomes Nuclear membrane and nucleolus break down and disappear Two pairs of dark spots called centrosomes appear next to the disappearing nucleus

14 In animal cells, each centrosome contains a pair of long, cylindrical bodies called centrioles Centrioles separate to opposite ends (poles) and spindle fibers begin to form; they are made of microtubules of protein

15 Fibers, Fibers Everywhere Polar fibers are spindle fibers that extend from the two poles of a dividing cell Kinetchore fibers are microtubules that connect kinetochores to a centrosome. Both of these types of spindle fibers make up the mitotic spindle Aster formation protein fibers which radiate from each centriole (not found in plant cells)

16

17 Early Prophase

18 Late Prophase

19 Metaphase Second Phase of Mitosis Chromosomes move and line up in the center of the cell the equator. Each chromosome is connected to a spindle fiber.

20 ASTERS Metaphase

21 Anaphase Third Phase of Mitosis Centromere of each pair of chromatids divide and move towards opposite poles Kinetichore and polar fibers work together to move chromosomes Spindle fibers start to break down When chromosomes separate, they are considered to be individual chromosomes!

22 Anaphase

23 Telophase 4th and Final Stage of Mitosis Spindle fibers completely disappear Chromosomes gather at opposite ends of the cell, unwind and lose their distinct shapes becoming chromatin again Nuclear envelope and nucleolus reappear. Cell membrane begins to pinch in forming a cleavage furrow (only in animal cells)

24 Telophase

25 Cytokinesis division of the cytoplasm Two new cells are formed Cells are equal in size Each new daughter cell has an identical set of duplicate chromosomes

26 Plant Cell Mitosis Has no asters Has a cell plate rather than a cleavage furrow

27 Animal Cells Plant Cells

28 Regulating the Cycle A protein called cyclin helps regulate the cell cycle in eukaryotic cells. These proteins are regulators and respond to internal and external events.

29 When Things Go Wrong Cancer cells do not respond to the signals that regulate the growth of most cells. As a result, they form masses of cells called tumors that can damage surrounding tissues.

30 Cancer

31

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. 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

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

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

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

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

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

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 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 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 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 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 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

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

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 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

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

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

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 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

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

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 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

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

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

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

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 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

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

(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

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

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

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

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

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: 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

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

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

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

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

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

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

-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

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

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 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

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

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

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

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

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

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 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 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

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

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

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

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

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

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 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

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

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

Origin of replication. Septum

Origin of replication. Septum Bacterial cell Bacterial chromosome: Double-stranded DNA Origin of replication Septum 1 2 3 Chromosome Rosettes of Chromatin Loops Chromatin Loop Solenoid Scaffold protein Scaffold protein Chromatin loop

More information

Bacterial cell. Origin of replication. Septum

Bacterial cell. Origin of replication. Septum Bacterial cell Bacterial chromosome: Double-stranded DNA Origin of replication Septum 1 2 3 Chromosome Rosettes of Chromatin Loops Scaffold protein Chromatin Loop Solenoid Scaffold protein Chromatin loop

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

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

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

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

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

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

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

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 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

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

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

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 Cycle. Materials 2 pipe cleaners of one color and 2 of another color Drawing paper

The Cell Cycle. Materials 2 pipe cleaners of one color and 2 of another color Drawing paper The Cell Cycle Introduction When the cell has reached its growth potential it will begin to divide. Additionally, if a cell has become damaged or worn out it can be replaced by surrounding cells through

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

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

Mitosis. Cell Cycle. interphase. Five Phases. prophase. metaphase

Mitosis. Cell Cycle. interphase. Five Phases. prophase. metaphase Mitosis Have you ever wondered how living things grow? Living things are made of cells. To grow bigger, they need more cells. Where do the new cells come from? Each cell divides, turning into two cells.

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

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

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

BIOLOGY 4/6/2015. Cell Cycle - Mitosis. Outline. Overview: The Key Roles of Cell Division. identical daughter cells. I. Overview II.

BIOLOGY 4/6/2015. 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

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 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

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

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

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

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

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

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

How Cells Divide. Chapter 10

How Cells Divide. Chapter 10 How Cells Divide Chapter 10 Bacterial Cell Division Bacteria divide by binary fission. -the single, circular bacterial chromosome is replicated -replication begins at the origin of replication and proceeds

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