NOTES. Cell Cycle & Mitosis
|
|
- April Wells
- 5 years ago
- Views:
Transcription
1 NOTES for Cell Cycle & Mitosis Biology 2016 Johnson
2 I. The Cell Cycle II. (2:15-4:25) III. A. Limits to Cell Size 1. As an organism grows, it gets MORE cells, NOT bigger cells! 2. Two things allow a cell to get only so big: a. Materials Movement *nutrients and wastes need to get into and out of the cell, and they only move so fast. b. DNA overload *the single copy of DNA in a cell s nucleus can only control so many organelles!
3 B. When a cell gets too big, it divides. 1. Two daughter cells are more efficient than a single, big cell. 2. Average life spans of some human cells before they divide: a. lining of small intestine = 1-2 days b. lining of esophagus = 2-3 days c. lining of large intestine = 6 days d. red blood cells = 120 days e. white blood cells = 10 hours decades f. heart & nerve cells = never (irreplaceable) C. Two main parts of a cell s life: Interphase & Mitosis (again, here s what we re talking about: )
4 1. Interphase = when a cell is NOT dividing. a. Most of a cell s life. b. Normal cell activities. c. Three phases in Interphase: Step1: G 1 = Cell growth Step 2: S = DNA is doubled so both new daughter cells can have a copy after it divides. Step 3: G 2 = All organelles are doubled so cell is ready for division.
5 2. Mitosis = cell division a. Also called M-phase. b. Very short part of a cell s life (about 2%) compared to Interphase. c. How you got from 1 cell to trillions of cells. d. Divided into 5 steps: Prophase Metaphase Anaphase Telophase Cytokinesis
6 IV. Events in each phase of Mitosis: A. Prophase = first step in mitosis 1. DNA wraps around proteins (called histones ) to form chromosomes. 2. Nuclear membrane breaks down. 3. Spindle fibers form. B. Metaphase Chromosomes (made of two identical sister chromatids joined at the centromere) attach to spindle fibers along middle of cell. C. Anaphase Sister chromatids split into daughter chromosomes and begin to move along spindle fibers to opposite ends of cell. D. Telophase New nuclear membrane forms around chromosomes. Spindle fibers disappear. E. Cytokinesis Cell pinches off to make two new daughter cells. Chromosomes unravel back into chromatin. Each daughter cell enters G 1
7 V. Events in each phase of Mitosis: A. Prophase = first step in mitosis 4. DNA wraps around proteins (called histones ) to form chromosomes. 5. Nuclear membrane breaks down. 6. Spindle fibers form. F. Metaphase Chromosomes (made of two identical sister chromatids joined at the centromere) attach to spindle fibers along middle of cell. G. Anaphase Sister chromatids split into daughter chromosomes and begin to move along spindle fibers to opposite ends of cell. H. Telophase New nuclear membrane forms around chromosomes. Spindle fibers disappear. I. Cytokinesis Cell pinches off to make two new daughter cells. Chromosomes unravel back into chromatin. Each daughter cell enters G 1
8 Loose DNA: chromatin Changes to DNA during the Cell Cycle 1. G 1 -Interphase: DNA is a long thread called chromatin. 2. S-Interphase: chromatin copies itself to get ready for cell division. 3. Prophase: chromatin wraps around proteins called histones to form chromosomes. a. To organize the 6 feet of DNA in the nucleus. b. The paired identical chromosomes are called sister chromatids which are joined at a point called the centromere. 4. Metaphase: still sister chromatids. 5. Anaphase: sister chromatids separate into daughter chromosomes. 6. Cytokinesis: chromosomes unravel back into loose chromatin.
9 II. Cell Cycle Controls A. Two things control when a cell divides: 1. Chemicals called cyclins build up in a cell and trigger mitosis when they reach a certain level. These cyclins are produced by a single gene on a cell s chromosome. 2. Contact Inhibition (when cells touch each other) also regulate when a cell divides. *especially important in wound healing B. If that gene that produces cyclin gets messed up, cells may divide uncontrollably. This occurrence is called cancer. (3:00-6:25)
10 1. Cancer (Tumor) Characteristics: a. invade and destroy healthy tissues. b. use up more nutrients than normal cells and grow their own blood vessels. c. may break loose and move to other parts of the body in a process called metastasis. d. One out of four people in the US will get cancer at some time in their life
11 2. Cancer Causes a. Genetic (many forms run in families) b. Carcinogens - things in the environment 1) radiation -sunlight, nuclear, etc. 2) tobacco - 30% of ALL cancers 3) pollution 3. Cancer Treatments a. Surgery remove an accessible, isolated tumor. b. Radiation shoot inaccessible, isolated tumors c. Chemotherapy harsh chemicals used to kill off widespread cancerous cells. 4. Cancer Prognosis-depends on the type a. pancreatic cancer = 3% survival b. testicular cancer = 91% survival
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 informationCell 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 informationChapter 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 informationCell 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 informationSection 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 information10-2 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 informationChapter 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 informationMitosis 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 informationCell 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 information10-2 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 informationThe 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 informationMitosis. 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 information10-2 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 informationCell 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 informationMitosis 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 informationThe 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 informationCell 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 information10-2 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 informationBiology Unit 7. Cell Division
Biology Unit 7 Cell Division Why would a cell want to divide? Reasons Cells Divide To avoid getting too big (cells not the organism) To help an organism grow and organize To replace old cells Cell Size
More informationKEY 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 informationPrentice 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 informationCell 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 informationCell Growth and Division
Cell Growth and Division CHAPTER 10 EQ Why do cells grow and divide? DID YOU KNOW THAT The adult human body produces roughly 2 TRILLION cells every day. WHY DO CELLS REPRODUCE? So that the organism can
More informationCell 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 informationChapter 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 informationWhy 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 informationThe 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 informationCHAPTER 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 informationUnit 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 informationCreating 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 informationUnit 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 informationChapter 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 informationCellular Reproduction
Section 1: Cellular Growth Section 2: Mitosis and Cytokinesis Section 3: Cell Cycle Regulation Click on a lesson name to select. Section 1 Cellular Growth Ratio of Surface Area to Volume Section 1 Cellular
More informationThe 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 informationCell Size Limitations. The Cell Cycle. The Cell Cycle. Cell Size Limitations. Unit 5: Cellular Reproduction. Unit 5: Cellular Reproduction
Cell Size Limitations Unit 5: Cellular Reproduction Transport of substances Diffusion Motor Proteins Chapter 9: Pages 242-265 Cellular communications How do cells send signals to each other? Unit 5: Cellular
More informationCell Growth and Division
Cell Growth and Division Things to ponder When living things grow, what happens to its cells?? OR? Things to ponder When living things grow, what happens to its cells? For example: When a 7lb baby grows
More informationCell 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 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 informationChapter 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 informationCell 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 information5.1. 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 informationSection 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 informationChapter 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 informationEssential 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 informationVocabulary: cell division, centriole, centromere, chromatid, chromatin, chromosome, cytokinesis, DNA, interphase, mitosis
Cell Division Answer Key Vocabulary: cell division, centriole, centromere, chromatid, chromatin, chromosome, cytokinesis, DNA, interphase, mitosis Prior Knowledge Questions (Do these BEFORE using the Gizmo.)
More informationMitosis: Cell Division
Name Mitosis: Cell Division by Cindy Grigg Answer the following questions BEFORE you read this book. It is okay if you do not know as much as you thought. Do the best you can! 1.How do children grow? Do
More informationAlmost 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 informationCELL 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 information8.1 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 informationCell 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 informationScience 10-Biology Activity 11 Worksheet on Cell Reproduction
Science 10-Biology Activity 11 Worksheet on Cell Reproduction Name Due Date 10 Show Me Hand In Correct and Hand In Again By NOTE: This worksheet is based on material from pages 356-362 in the Science Probe
More informationCell Size Limitations
Cell Size Limitations Cells come in a wide variety of sizes and shapes. Considering this wide range of cells sizes, why then can t most organisms be just one giant cell? Diffusion limits cell size Although
More informationMitosis. 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 informationChapter 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 information3.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 informationNOTES: 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 informationMitosis: 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 informationChromosomes & 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 informationNucleus. 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 informationKEY CONCEPT Cells have distinct phases of growth, reproduction, and normal functions.
5.1 The Cell Cycle KEY CONCEPT Cells have distinct phases of growth, reproduction, and normal functions. Objective: Cells have distinct phases of growth, reproduction and normal functions. APK: Why do
More informationCELL 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 informationMitosis 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 informationGenes 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 informationCell 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 informationMitosis: 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 informationThe 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 informationCell 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 information11/13/2013. Cell Size Limitations. Diffusion limits cell size. Surface area-to-volume ratio
Cell Size Limitations Section Objectives Sequence the events of the cell cycle. Relate the function of a cell to its organization in tissues, organs, and organ systems. Cells come in a wide variety of
More informationCell 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 informationName: 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 informationCell 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 informationSNC2D BIOLOGY 3/17/2013 STAGE 3. TISSUES, ORGANS & SYSTEMS OF L The Cell Cycle (P.28-32) The Cell Cycle. The Cell Cycle
SNC2D BIOLOGY TISSUES, ORGANS & SYSTEMS OF L The Cell Cycle (P.28-32) The Cell Cycle Cell division affects how an organism grows, repairs injuries, and reproduces. Just as you will go through many stages
More informationToday 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 informationName: Cell division and cancer review
Name: Cell division and cancer review 1. What type of cell undergoes meiosis? Gamete cells or Somatic cells 2. Define homologous chromosomes. 2 chromosomes with similar structure 3. For each of the following
More informationCellular 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 informationChapter 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 informationOmnis 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 informationUnit 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 informationCell 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 informationMITOSIS: Making New Body Cells Making New DNA. The Cell Cycle and Mitosis Notes Page THE CELL CYCLE
Biology is the only subject in which multiplication is the same thing as division The Cell Cycle and Mitosis Notes Page THE CELL CYCLE Series of events that s go through as they grow and divide Consists
More informationThe 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 informationHistones- 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 informationMitosis & 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 informationCell Division Mitosis Notes
Cellular Division Learning Goals I can understand and explain that every organism requires a set of instruc:ons that specifies its traits, that this hereditary informa:on (DNA) contains genes located in
More informationCell division occurs in a series of stages, or phases.
Mitosis Notes Cell division occurs in a series of stages, or phases. 1st: INTERPHASE Chromosomes are copied (# doubles) Chromosomes appear as threadlike coils (chromatin) at the start, but each chromosome
More informationPart 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 informationMitosis and Meiosis. Chapters 8 & 10
Mitosis and Meiosis Chapters 8 & 10 O Quiz #6: December 6th Learning Goals O Describe what happens during interphase O Identify steps of mitosis/meiosis by picture and function O Explain the diseases that
More informationMITOSIS 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 informationScience 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 informationName 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 information5/25/2015. Replication fork. Replication fork. Replication fork. Replication fork
Mutations Chapter 5 Cellular Functions Lecture 3: and Cell Division Most DNA mutations alter the protein product May Make it function better (rarely) Change its function Reduce its function Make it non-functional
More informationPre-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 informationUnit 4: Reproduction. Traits. Heredity. Nucleus: The Control Center. DNA deoxyribonucleic acid 09/06/2016
Unit 4: Reproduction Traits Traits: are physical features of an organism. They can vary in size or form from one individual to another. Examples include eye color, height and colour vision. Heredity Heredity:
More informationmeiosis 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 informationThe Cell Cycle Cy Control, Phases, & Cancer
The Cell Cycle Control, Phases, & Cancer CELL CYCLE The cell is a constantly changing structure Keeps up with it s changing environment Maintains homeostasis Why does it split? Must reproduce when surface
More informationUnit 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 informationPart 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 information3/19/17. 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 informationU3.2.3: 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 information2.1 The Importance of Cell Division
2.1 The Importance of Cell Division Functions of cell division Growth Repair Reproduction Growth All organisms begin as a single cell. Cell divisions will increase as an organism s size increases. There
More information