Passive. mechanisms. Active. mechanisms. Cell diffusion. Movement. Movement. Movement. Mechanisms that do not require cellular energy such as:

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "Passive. mechanisms. Active. mechanisms. Cell diffusion. Movement. Movement. Movement. Mechanisms that do not require cellular energy such as:"

Transcription

1 Passive mechanisms Mechanisms that do not require cellular energy such as: Diffusion Facilitated diffusion Osmosis Filtration Active mechanisms Mechanisms that do require cellular energy such as: Active transport Endocytosis Exocytosis Cell diffusion A substance can only diffuse into or out of a cell if the cell membrane is permeable to the substance and if a concentration gradient exists

2 Dialysis A chemical technique that uses diffusion to separate small molecules from larger ones in a liquid Facilitated diffusion A process that moves molecules from regions of higher concentration toward regions of lower concentration Insulin A hormone that promotes facilitated diffusion of glucose through the membrane of certain cells

3 Osmosis A special case of diffusion that occurs whenever water molecules diffuse from a region of higher water concentration to a region of lower water concentration across a selectively permeable membrane Osmotic Pressure The ability of osmosis to generate enough pressure to lift a volume of water Isotonic Refers to a solution that has the same osmotic pressure as body fluids

4 Hypertonic Refers to a solution that has a higher osmotic pressure than body fluids causing the cells to shrink as water moves out of the cell Hypotonic Refers to a solution that has a lower osmotic pressure than body fluids causing the cells to swell and possibly burst as water moves into it Hydrostatic pressure Pressure created by the weight of water

5 Active transport Process that occurs when particles move from a region of lower concentration to a region of higher concentration Endocytosis Process by which particles that are too large to enter a cell by diffusion, facilitated diffusion, or active transport are conveyed with a vesicle formed from a section of the cell membrane Exocytosis Process by which particles stored in vesicles are secreted from the cell

6 Pinocytosis Process by which cells engulf tiny droplets of liquid from their surroundings as a small portion of the cell membrane indents Phagocytosis Process by which cells engulf particles from their surroundings as a small portion of the cell membrane indents Transcytosis Process that combines endocytosis and exocytosis to transport a particle or structure across a cell

7 Interphase The stage in the cell cycle where young cells grow, manufacture compounds, new organelles are made, and the chromosomes and centrioles replicate S phase of interphase The phase when the DNA of the cell is replicated in preparation for cell division G1 and G2 phases The phase when the cell grows and other structures are duplicated

8 Mitosis Division of the cell nucleus Each daughter cell receives an exact copy of the mother s genetic material Described as a series of four stages but the process is actually continuous Meiosis The division of sex cells resulting in two, and then four, daughter cells each containing the haploid number of chromosomes which is half of the parent cell s genetic information; mitosis is a phase of meiosis Prophase The first stage of mitosis when the DNA condenses into chromosomes, the nuclear envelope and the nucleolus disperse, and a spindle-shaped group of microtubules forms between the centrioles as they move apart

9 Metaphase The second stage of mitosis when the chromosomes line up in an orderly fashion about midway between the centrioles, and spindle fibers become attached to the centromere of the chromosome Anaphase The phase when the centromere of the chromatids separate and the chromatids become chromosomes, which are pulled apart toward opposite sides of the cell Telophase The final stage of mitosis when the chromosomes complete their migration toward the centrioles, the nuclear envelope reforms, and the chromosomes become invisible

10 Cytokinesis This phase begins during anaphase; cell membrane develops a cleavage furrow Contraction of a ring of microfilaments divides cytoplasm Ring pinches inward, separating the two nuclei and distributing half of the organelles New cells may differ slightly but contain identical genetic info Cell differentiation The process by which cells develop specialized characteristics in structure and function to reflect genetic control of the nucleus as certain genes are turned on while others are turned off Stem Cell Cells that retain the ability to divide repeatedly without specializing allow for continual growth and renewal; this cell divides mitotically to yield either two daughter cells like itself, or one daughter cell and one that becomes partially specialized

11 Apoptosis A form of cell death that is a normal part of development (Ex: Skin cells peeling away after a sunburn) Scavenger Cell A cell that engulfs and destroys cells that are undergoing apoptosis Cancer A group of closely related diseases resulting from gene mutations that alter the cell cycle; characteristics include: Hyperplasia Dedifferentiation Invasiveness Angiogenesis Metastasis

BIO 210 Chapter 4 Physiology of Cells. By Beth Wyatt, Jack Bagwell, & John McGill. Introduction

BIO 210 Chapter 4 Physiology of Cells. By Beth Wyatt, Jack Bagwell, & John McGill. Introduction BIO 210 Chapter 4 Physiology of Cells By Beth Wyatt, Jack Bagwell, & John McGill Introduction The living must exchange materials with the nonliving. How does this happen? Cell transport Two major types

More information

The Process of Cell Division. Lesson Overview. Lesson Overview The Process of Cell Division

The Process of Cell Division. Lesson Overview. Lesson Overview The Process of Cell Division Lesson Overview 10.2 The Process of Cell Division Chromosomes genetic information passed from parent to offspring is carried by chromosomes. Chromosomes enable precise DNA separation during cell division.

More information

The Cell Cycle & Cell Division

The Cell Cycle & Cell Division The Cell Cycle & Cell Division http://www.nobel.se/medicine/laureates/2001/press.html The Cell Cycle Animated Cycle http://www.cellsalive.com/cell_cycle.htm MITOSIS Mitosis The process of cell division

More information

Key Concepts. n Cell Cycle. n Interphase. n Mitosis. n Cytokinesis

Key Concepts. n Cell Cycle. n Interphase. n Mitosis. n Cytokinesis The Cell Cycle B-2.6: Summarize the characteristics of the cell cycle: interphase (G 1, S, G 2 ); the phases of mitosis (prophase, metaphase, anaphase, telophase); and plant and animal cytokinesis. Key

More information

Mitosis and Meiosis Cell growth and division

Mitosis and Meiosis Cell growth and division Mitosis and Meiosis Cell growth and division The larger the cell, the more trouble the cell has moving nutrients and waste across the cell membrane. 1. DNA/information overload As a cell increases in size,

More information

Cell Growth, Division, and Reproduction

Cell Growth, Division, and Reproduction Cell Growth, Division, and Reproduction Human Development: Mitosis and Meiosis Division of the Cell Before a cell grows too large, it divides into two new daughter cells in a process called cell division.

More information

Unit 2: Characteristics of Living Things Lesson 25: Mitosis

Unit 2: Characteristics of Living Things Lesson 25: Mitosis Name Unit 2: Characteristics of Living Things Lesson 25: Mitosis Objective: Students will be able to explain the phases of Mitosis. Date Essential Questions: 1. What are the phases of the eukaryotic cell

More information

Chapter 3. Cells. Cells. Cells

Chapter 3. Cells. Cells. Cells Chapter 3 Cells Cells Cytology The basic unit of life Humans have about 75 trillion cells Largest human cell is the egg While there are many varieties to cells there are many common characteristics. Cells

More information

Cellular Reproduction

Cellular Reproduction Cellular Reproduction Ratio of Surface Area to Volume As the cell grows, its volume increases much more rapidly than the surface area. The cell might have difficulty supplying nutrients and expelling enough

More information

Cell Cycle (mitosis and meiosis) Test Review

Cell Cycle (mitosis and meiosis) Test Review Cell Cycle (mitosis and meiosis) Test Review Name: Chapter 10 1. What problems are caused when a cell becomes too large? When a cell becomes too large the cell is strained and has a hard time moving enough

More information

AP Biology Fall Semester Set 1

AP Biology Fall Semester Set 1 1. During which stage does DNA replication occur? A. Prophase B. Metaphase C. Anaphase D. none of these 2. At what phase in the cell cycle does DNA replication occur? A. G1 B. S C. G2 D. M 3. Which of

More information

Cell Division. Genetic info must be copied. Each cell gets a complete copy of that info. It occurs in two main stages:

Cell Division. Genetic info must be copied. Each cell gets a complete copy of that info. It occurs in two main stages: 10-2 Cell Division Key Questions: 1)What is the role of chromosomes in cell division? 2) What are the main events of the cell cycle? 3) What events occur during each of the four phases of mitosis? 4) How

More information

CELL GROWTH AND DIVISION. Chapter 10

CELL GROWTH AND DIVISION. Chapter 10 CELL GROWTH AND DIVISION Chapter 10 Cell division = The formation of 2 daughter cells from a single parent cell Increases ratio of surface area to volume for each cell Allows for more efficient exchange

More information

Cells and Tissues PART B

Cells and Tissues PART B 3 Cells and Tissues PART B PowerPoint Lecture Slide Presentation by Jerry L. Cook, Sam Houston University ESSENTIALS OF HUMAN ANATOMY & PHYSIOLOGY EIGHTH EDITION ELAINE N. MARIEB Cellular Physiology: Membrane

More information

AP Biology - Cell cycle / division

AP Biology - Cell cycle / division AP Biology - Cell cycle / division Quiz Directions 1. During which stage does DNA replication occur? A. Prophase B. Metaphase C. Anaphase D. none of these 2. At what phase in the cell cycle does DNA replication

More information

CELL DIVISION IN EUKARYOTES. Professor Andrea Garrison Biology 11 Illustrations 2010 Pearson Education, Inc.

CELL DIVISION IN EUKARYOTES. Professor Andrea Garrison Biology 11 Illustrations 2010 Pearson Education, Inc. CELL DIVISION IN EUKARYOTES Professor Andrea Garrison Biology 11 Illustrations 2010 Pearson Education, Inc. PURPOSE: Reproduction of new cells from previously existing cells 2 of Genetically Identical

More information

3.2.2 All cells arise from other cells

3.2.2 All cells arise from other cells alevelbiology.co.uk SPECIFICATION Within multicellular organisms, not all cells retain the ability to divide. Eukaryotic cells that do retain the ability to divide show a cell cycle. DNA replication occurs

More information

Fertilization of sperm and egg produces offspring

Fertilization of sperm and egg produces offspring In sexual reproduction Fertilization of sperm and egg produces offspring In asexual reproduction Offspring are produced by a single parent, without the participation of sperm and egg CONNECTIONS BETWEEN

More information

Hole s Human Anatomy and Physiology

Hole s Human Anatomy and Physiology Hole s Human Anatomy and Physiology 1 Chapter 3 Cells vary in size possess distinctive shapes measured in micrometers 2 A Composite Cell hypothetical cell major parts nucleus cytoplasm cell membrane 3

More information

Biology Unit 6 Chromosomes and Mitosis

Biology Unit 6 Chromosomes and Mitosis Biology Unit 6 Chromosomes and Mitosis 6:1 Chromosomes DNA GENES CHROMATIN/CHROMOSOMES CHROMOSOMES/CHROMATIN are made of units called GENES. GENES are made of a compound called deoxyribonucleic acid or

More information

ACCELERATE ITS BIOCHEMICAL PROCESSES WHICH WERE SLOWED DOWN BY MITOSIS. THE LENGTH OF THE G1 PHASE CREATES THE DIFFERENCE BETWEEN FAST DIVIDING

ACCELERATE ITS BIOCHEMICAL PROCESSES WHICH WERE SLOWED DOWN BY MITOSIS. THE LENGTH OF THE G1 PHASE CREATES THE DIFFERENCE BETWEEN FAST DIVIDING CHAPTER 1: OVERVIEW OF THE CELL CYCLE THE THREE STAGES OF INTERPHASE: INTERPHASE BEFORE A CELL CAN ENTER CELL DIVISION, IT NEEDS TO PREPARE ITSELF BY REPLICATING ITS GENETIC INFORMATION AND ALL OF THE

More information

Meiosis produces haploid gametes.

Meiosis produces haploid gametes. Section 1: produces haploid gametes. K What I Know W What I Want to Find Out L What I Learned Essential Questions How does the reduction in chromosome number occur during meiosis? What are the stages of

More information

chromosomes found in the somatic (body) cells of an organism is reduced by half to form the sex cells, egg & sperm. chromosomes.

chromosomes found in the somatic (body) cells of an organism is reduced by half to form the sex cells, egg & sperm. chromosomes. MEIOSIS n Meiosis q The process by which the number of chromosomes found in the somatic (body) cells of an organism is reduced by half to form the sex cells, egg & sperm. q Somatic cells have 46 chromosomes.

More information

Cell Reproduction Review

Cell Reproduction Review Name Date Period Cell Reproduction Review Explain what is occurring in each part of the cell cycle --- G 0, G1, S, G2, and M. 1 CELL DIVISION Label all parts of each cell in the cell cycle and explain

More information

The Cell Cycle. Chapter 12

The Cell Cycle. Chapter 12 The Cell Cycle Chapter 12 Why are cells small? As cells get bigger they don t work as well WHY? Difficulties Larger Cells Have: More demands on its DNA Less efficient in moving nutrients/waste across its

More information

MEIOSIS. KEY CONCEPT Gametes have half the number of chromosomes that body cells have.

MEIOSIS. KEY CONCEPT Gametes have half the number of chromosomes that body cells have. MEIOSIS MEIOSIS KEY CONCEPT Gametes have half the number of chromosomes that body cells have. MEIOSIS : CELL TYPES You have Body cells and Gametes Body cells are also called somatic cells. Germ cells develop

More information

Honors Biology Test Chapter 8 Mitosis and Meiosis

Honors Biology Test Chapter 8 Mitosis and Meiosis Honors Biology Test Chapter 8 Mitosis and Meiosis 1. In mitosis, if a parent cell has 16 chromosomes, each daughter cell will have how many chromosomes? a. 64 b. 32 c. 16 d. 8 e. 4 2. Chromatids that are

More information

THE CELL CYCLE & MITOSIS. Asexual Reproduction: Production of genetically identical offspring from a single parent.

THE CELL CYCLE & MITOSIS. Asexual Reproduction: Production of genetically identical offspring from a single parent. THE CELL CYCLE & MITOSIS Asexual Reproduction: Production of genetically identical offspring from a single parent. Sexual Reproduction: The fusion of two separate parent cells that produce offspring with

More information

Cell Cycle and Mitosis

Cell Cycle and Mitosis Cell Cycle and Mitosis 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

More information

Cell Size. Cell Growth and Reproduction 12/3/14

Cell Size. Cell Growth and Reproduction 12/3/14 Cell Growth and Reproduction Cell Size Why are cells so small? Cells do not contain a circulatory system Cells receive nutrients and remove waste through diffusion Diffusion- movement of molecules from

More information

11-4 Meiosis Meiosis. Slide 1 of 35. Copyright Pearson Prentice Hall

11-4 Meiosis Meiosis. Slide 1 of 35. Copyright Pearson Prentice Hall 11-4 Meiosis 1 of 35 Each organism must inherit a single copy of every gene from each of its parents. Gametes are formed by a process that separates the two sets of genes so that each gamete ends up with

More information

Biology: Life on Earth

Biology: Life on Earth Biology: Life on Earth Eighth Edition Lecture for Chapter 11 The Continuity of Life: Cellular Reproduction Cellular Reproduction Intracellular activity between one cell division to the next is the cell

More information

Bio 10: 10.1 Cell Growth, Division, and Reproduction

Bio 10: 10.1 Cell Growth, Division, and Reproduction Bio 10: 10.1 Cell Growth, Division, and Reproduction Lesson Objectives Explain the problems that growth causes for cells. Compare asexual and sexual reproduction. Lesson Summary Limits to Cell Size There

More information

CELL CYCLE, MITOSIS AND MEIOSIS NOTES

CELL CYCLE, MITOSIS AND MEIOSIS NOTES CELL CYCLE, MITOSIS AND MEIOSIS NOTES DNA - Genetic information is stored in the DNA strand in the form of genes. DNA stands for deoxyribose nucleic acid Genes located on the DNA strand 2 Types of DNA

More information

Cell Growth and Reproduction Module B, Anchor 1

Cell Growth and Reproduction Module B, Anchor 1 Cell Growth and Reproduction Module B, Anchor 1 Key Concepts: - The larger a cell becomes, the more demands the cell places on its DNA. In addition, a larger cell is less efficient in moving nutrients

More information

Notes: Cell Processes 1. Movement across cell membrane 2. Photosynthesis 3. Cellular respiration 4. Cell cycle

Notes: Cell Processes 1. Movement across cell membrane 2. Photosynthesis 3. Cellular respiration 4. Cell cycle Notes: Cell Processes 1. Movement across cell membrane 2. Photosynthesis 3. Cellular respiration 4. Cell cycle AMDG 1. Notes: Movement across a cell membrane Cell Membrane-see picture in text book What

More information

10.1 Cell Growth, Division, and Reproduction

10.1 Cell Growth, Division, and Reproduction 10.1 Cell Growth, Division, and Reproduction Lesson Objectives Explain the problems that growth causes for cells. Compare asexual and sexual reproduction. Lesson Summary Limits to Cell Size There are two

More information

To help you complete this review activity and to help you study for your test, you should read SC State Standards B

To help you complete this review activity and to help you study for your test, you should read SC State Standards B Name: Test Date: PAGE: Biology I: Unit 3 Cell Structure Review for Unit Test Directions: You should use this as a guide to help you study for your test. You should also read through your notes, worksheets,

More information

Cellular Reproduction. MXMS 7th Grade Science

Cellular Reproduction. MXMS 7th Grade Science Cellular Reproduction MXMS 7th Grade Science What is cell division? 2 primary methods allow for cells to divide and reproduce themselves: A. Mitosis: produces identical offspring B. Meiosis: produces genetically

More information

Biology Unit 3 Exam DO NOT WRITE ON THIS EXAM. Multiple Choice Identify the choice that best completes the statement or answers the question.

Biology Unit 3 Exam DO NOT WRITE ON THIS EXAM. Multiple Choice Identify the choice that best completes the statement or answers the question. Biology Unit 3 Exam Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Water moves into a cell placed in a(n) solution. a. osmotic c. hypotonic b. hypertonic

More information

9-4 Meiosis Meiosis. Slide 1 of 35

9-4 Meiosis Meiosis. Slide 1 of 35 9-4 Meiosis 11-4 Meiosis 1 of 35 11-4 Meiosis Each organism must inherit a single copy of every gene from each of its parents. Gametes are formed by a process that separates the two sets of genes so that

More information

Mitosis and Meiosis for AP Biology

Mitosis and Meiosis for AP Biology Mitosis and Meiosis for AP Biology by Mark Anestis Practice problems for these concepts can be found at : Cell Division Review Questions for AP Biology Mitosis During mitosis, the fourth stage of the cell

More information

E. Incorrect! At telophase II, cells are nearly completed with meiosis, with no cross-over.

E. Incorrect! At telophase II, cells are nearly completed with meiosis, with no cross-over. OAT Biology - Problem Drill 06: Mitosis and Meiosis Question No. 1 of 10 1. During meiosis, cross-over between homologous chromosomes occurs at the end of. Question #01 (A) Anaphase II (B) Metaphase I

More information

Meiosis. Bởi: OpenStaxCollege

Meiosis. Bởi: OpenStaxCollege Meiosis Bởi: OpenStaxCollege Sexual reproduction requires fertilization, a union of two cells from two individual organisms. If those two cells each contain one set of chromosomes, then the resulting cell

More information

Mitosis and Meiosis Cell growth and division

Mitosis and Meiosis Cell growth and division LIMITS TO CELL GROWTH Mitosis and Meiosis Cell growth and division The larger the cell, the more trouble the cell has moving nutrients and waste across the cell membrane. LIMITS TO CELL GROWTH 1. DNA/information

More information

Cell Division: the process of copying and dividing entire cells The cell grows, prepares for division, and then divides to form new daughter cells.

Cell Division: the process of copying and dividing entire cells The cell grows, prepares for division, and then divides to form new daughter cells. Mitosis & Meiosis SC.912.L.16.17 Compare and contrast mitosis and meiosis and relate to the processes of sexual and asexual reproduction and their consequences for genetic variation. 1. Students will describe

More information

2:1 Chromosomes DNA Genes Chromatin Chromosomes CHROMATIN: nuclear material in non-dividing cell, composed of DNA/protein in thin uncoiled strands

2:1 Chromosomes DNA Genes Chromatin Chromosomes CHROMATIN: nuclear material in non-dividing cell, composed of DNA/protein in thin uncoiled strands Human Heredity Chapter 2 Chromosomes, Mitosis, and Meiosis 2:1 Chromosomes DNA Genes Chromatin Chromosomes CHROMATIN: nuclear material in non-dividing cell, composed of DNA/protein in thin uncoiled strands

More information

Meiosis: M-Phase part 2. How is meiosis different from mitosis? Some terms: Some terms: Some terms:

Meiosis: M-Phase part 2. How is meiosis different from mitosis? Some terms: Some terms: Some terms: M-Phase part 2 Meiosis and Cytokinesis Meiosis: A special type of cell division that produces gametes. Cell division that occurs in sex organs. 2 successive nuclear divisions Genetic mistakes (gene and

More information

Meiosis. The sexy shuffling machine. LO: Describe the events of meiosis Explain how meiosis creates uniqueness Compare & contrast mitosis & meiosis

Meiosis. The sexy shuffling machine. LO: Describe the events of meiosis Explain how meiosis creates uniqueness Compare & contrast mitosis & meiosis Meiosis The sexy shuffling machine LO: Describe the events of meiosis Explain how meiosis creates uniqueness Compare & contrast mitosis & meiosis http://www.youtube.com/watch?v=kvmb4js99ta Meiosis Intro

More information

Objective: The Cell. The Cell Theory. Question of the day: The Plasma Membrane 11/2/09. The Generalized Cell: Parts and Organelles:

Objective: The Cell. The Cell Theory. Question of the day: The Plasma Membrane 11/2/09. The Generalized Cell: Parts and Organelles: Objective: The Cell Basic Unit of Life The student will become familiar with the structure and function of the basic cell :) The student will know the differences between and animal cell and a plant cell

More information

Cell Cycle and Cell Division

Cell Cycle and Cell Division Cell Cycle and Cell Division The Cell Cycle is the series of events that take place in the cell from one cell division to another. Cell Cycle includes: 1-Interphase 2-Mitosis 3-Cytokinesis Phases of the

More information

Cell cycle, mitosis & meiosis. Chapter 6

Cell cycle, mitosis & meiosis. Chapter 6 Cell cycle, mitosis & meiosis Chapter 6 Why do cells divide? Asexual reproduction Growth Replacement / repair Cell division: The big picture Two steps Before cells can divide, DNA needs to replicate DNA

More information

Chapter 8 Lectures by Gregory Ahearn University of North Florida

Chapter 8 Lectures by Gregory Ahearn University of North Florida Chapter 8 The Continuity of Life: How Cells Reproduce Lectures by Gregory Ahearn University of North Florida Copyright 2009 Pearson Education, Inc. 8.1 Why Do Cells Divide? Cells reproduce by cell division.

More information

CELL REPRODUCTION NOTES

CELL REPRODUCTION NOTES CELL REPRODUCTION NOTES CELL GROWTH AND DIVISION The adult human body produces roughly cells every day. WHY DO CELLS REPRODUCE? So that the organism can and As multicellular organisms grow larger, its

More information

The Cellular Basis of Inheritance

The Cellular Basis of Inheritance CHAPTER 9 The Cellular Basis of Inheritance Summary of Key Concepts Concept 9.1 All cells come from cells. (pp. 180 181) Cell reproduction is an important process. Three functions of cell reproduction

More information

Cell Growth and Division

Cell Growth and Division Cell Growth and Division Growth, Development, and Reproduction Q: How does a cell produce a new cell? 10.1 Why do cells divide? WHAT I KNOW SAMPLE ANSWER: Cells divide to produce more cells. WHAT I LEARNED

More information

Chapter 2: Chromosomes and cellular reproduction

Chapter 2: Chromosomes and cellular reproduction Chapter 2: Chromosomes and cellular reproduction I. Contrast between prokaryotes and eukaryotes. See Figure 2.1 Nucleus absent Small diameter 1 to 10 µm Genome usually 1 circular molecule Small genome;

More information

Honors Biology-CW/HW Cell Biology 2018

Honors Biology-CW/HW Cell Biology 2018 Class: Date: Honors Biology-CW/HW Cell Biology 2018 Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Hooke s discovery of cells was made observing a. living

More information

Human biology Laboratory. Cell division. Lecturer Maysam A Mezher

Human biology Laboratory. Cell division. Lecturer Maysam A Mezher Human biology Laboratory Cell division Lecturer Maysam A Mezher CHROMOSOME STRUCTURE 1. During nuclear division, the DNA (as chromatin) in a Eukaryotic cell's nucleus is coiled into very tight compact

More information

4/6/2014. Chromosome Number

4/6/2014. Chromosome Number Meiosis 1of 35 Each organism must inherit a single copy of every gene from each of its parents. Gametes are formed by a process that separates the two sets of genes so that each gamete ends up with just

More information

The division of a unicellular organism reproduces an entire organism, increasing the population. Here s one amoeba dividing into 2.

The division of a unicellular organism reproduces an entire organism, increasing the population. Here s one amoeba dividing into 2. 1. Cell division functions in 3 things : reproduction, growth, and repair The division of a unicellular organism reproduces an entire organism, increasing the population. Here s one amoeba dividing into

More information

biology Slide 1 of 35 End Show Copyright Pearson Prentice Hall

biology Slide 1 of 35 End Show Copyright Pearson Prentice Hall biology 1 of 35 Do Now: Turn in mitosis worksheet Write down your homework http://www.richannel.org/collection s/2013/chromosome#/chromosome -2 http://www.richannel.org/collection s/2013/chromosome#/chromosome

More information

Introduction to Cells

Introduction to Cells Life Science Introduction to Cells All life forms on our planet are made up of cells. In ALL organisms, cells have the same basic structure. The scientist Robert Hooke was the first to see cells under

More information

Biology Notes 2. Mitosis vs Meiosis

Biology Notes 2. Mitosis vs Meiosis Biology Notes 2 Mitosis vs Meiosis Diagram Booklet Cell Cycle (bottom corner draw cell in interphase) Mitosis Meiosis l Meiosis ll Cell Cycle Interphase Cell spends the majority of its life in this phase

More information

Cell Division. Mitosis

Cell Division. Mitosis Cell division consists of two phases, nuclear division followed by cytokinesis. Nuclear division divides the genetic material in the nucleus, while cytokinesis divides the cytoplasm. There are two kinds

More information

11-4 Meiosis Chromosome Number Slide 1 of 35

11-4 Meiosis Chromosome Number Slide 1 of 35 Each organism must inherit a single copy of every gene from each of its parents. Gametes are formed by a process that separates the two sets of genes so that each gamete ends up with just one set. Chromosome

More information

11.4 Meiosis. Vocabulary: Homologous Diploid Haploid Meiosis Crossing-over Tetrad

11.4 Meiosis. Vocabulary: Homologous Diploid Haploid Meiosis Crossing-over Tetrad 11.4 Meiosis Vocabulary: Homologous Diploid Haploid Meiosis Crossing-over Tetrad Key Concept: What happens during the process of meiosis? How is MEIOSIS different than mitosis? Blast from the past What

More information

Genetics word list. the molecule which contains genes. This will be looked at in more detail. it is shaped in a double helix (spiral)

Genetics word list. the molecule which contains genes. This will be looked at in more detail. it is shaped in a double helix (spiral) Genetics word list DNA the molecule which contains genes. This will be looked at in more detail. it is shaped in a double helix (spiral) Chromosomes X-shaped objects found in the nucleus of a cell. The

More information

Why do we have to cut our hair, nails, and lawn all the time?

Why do we have to cut our hair, nails, and lawn all the time? Chapter 5 Cell Reproduction Mitosis Think about this Why do we have to cut our hair, nails, and lawn all the time? EQ: Why is cell division necessary for the growth & development of living organisms? Section

More information

Bell Ringer 02/02/15. Match the stages of mitosis to their descriptions and pictures.

Bell Ringer 02/02/15. Match the stages of mitosis to their descriptions and pictures. Match the stages of mitosis to their descriptions and pictures. 1. Nuclear membrane disappears and chromosomes condense 2. Nuclear membrane reappears and cells begin to fully separate Bell Ringer 02/02/15

More information

Chapter 5: Mitosis is the Basis of Asexual Reproduction

Chapter 5: Mitosis is the Basis of Asexual Reproduction Chapter 5: Mitosis is the Basis of Asexual Reproduction Section 5.1: The Cell Cycle and Mitosis Living things must be able to reproduce. For unicellular organisms, cell reproduction is necessary to maintain

More information

Cell Reproduction. Objectives

Cell Reproduction. Objectives Cell Reproduction Lecture 10 Objectives At the end of this series of lectures you should be able to: Define terms. Describe the functions of cellular reproduction. Compare the parent offspring relationship

More information

3.a.2- Cell Cycle and Meiosis

3.a.2- Cell Cycle and Meiosis Big Idea 3: Living systems store, retrieve, transmit and respond to information essential to life processes. 3.a.2- Cell Cycle and Meiosis EU 3.A: Heritable information provides for continuity of life.

More information

Cell division / Asexual reproduction

Cell division / Asexual reproduction Cell division / Asexual reproduction Mitosis produces cells with same information identical daughter cells exact copies clones same amount of DNA same number of chromosomes same genetic information Asexual

More information

Mitochondria. Nickname: Batteries. bean shaped. Structure: Function: provides energy for the cell (powerhouse of the cell)

Mitochondria. Nickname: Batteries. bean shaped. Structure: Function: provides energy for the cell (powerhouse of the cell) The Cell #1 Mitochondria Mitochondria Nickname: Batteries Structure: bean shaped Function: provides energy for the cell (powerhouse of the cell) Mitochondria #2 Nucleus Nucleus Nickname: Structure: Function:

More information

Why mitosis?

Why mitosis? Mitosis occurs only in eukaryotes. Prokaryotes (i.e., archaea and bacteria) divide via binary fission. Mitosis is the process by which the somatic cells of all multicellular organisms multiply. Somatic

More information

CELL DIVISION: MEIOSIS

CELL DIVISION: MEIOSIS CELL DIVISION: MEIOSIS How do Organisms Reproduce? Option 1: Asexual Reproduction Can be done by a single organism without the involvement of gametes (sperm or egg) Offspring are clones of the parent,

More information

CELL REPRODUCTION. Mitotic M phase Mitosis. Chromosomes divide. Cytokinesis. Cytoplasm and cell membrane divide. Chromosomes as Packaged Genes

CELL REPRODUCTION. Mitotic M phase Mitosis. Chromosomes divide. Cytokinesis. Cytoplasm and cell membrane divide. Chromosomes as Packaged Genes CELL REPRODUCTION Kimberly Lozano Biology 490 Spring 2010 CELL CYCLE Interphase G1: Growth (1) New organelles form within the cell. S: Synthesis Cell duplicates its DNA. G2: Growth (2) Cell prepares for

More information

GENERAL SAFETY: Follow your teacher s directions. Do not work in the laboratory without your teacher s supervision.

GENERAL SAFETY: Follow your teacher s directions. Do not work in the laboratory without your teacher s supervision. Name: Bio AP Lab: Cell Division B: Mitosis & Meiosis (Modified from AP Biology Investigative Labs) BACKGROUND: One of the characteristics of living things is the ability to replicate and pass on genetic

More information

Mitosis and. Meiosis. Presented by Kesler Science

Mitosis and. Meiosis. Presented by Kesler Science Mitosis and Meiosis Presented by Kesler Science Essential Questions: 1. What are mitosis and meiosis? 2. What occurs at different phases in cell division? 3. How are mitosis and meiosis similar and different?

More information

Chapter 11: The Continuity of Life: Cellular Reproduction. What is Cellular Reproduction?

Chapter 11: The Continuity of Life: Cellular Reproduction. What is Cellular Reproduction? Chapter 11: The Continuity of Life: Cellular Reproduction What is Cellular Reproduction? Answer: The division of a parent cell into two daughter cells Requirements of Each Daughter Cell: 1) Necessary genomic

More information

Cell Division. Binary Fission, Mitosis & Meiosis 2/9/2016. Dr. Saud Alamri

Cell Division. Binary Fission, Mitosis & Meiosis 2/9/2016. Dr. Saud Alamri Cell Division Binary Fission, Mitosis & Meiosis 1 Prokaryotic cells reproduce asexually by a type of cell division called binary fission 2 Prokaryotic chromosome Division into two daughter cells Plasma

More information

Chapter 11: The Continuity of Life: Cellular Reproduction

Chapter 11: The Continuity of Life: Cellular Reproduction Chapter 11: The Continuity of Life: Cellular Reproduction Chapter 11: Cellular Reproduction What is Cellular Reproduction? Answer: The division of a parent cell into two daughter cells Requirements of

More information

Biology. Chapter 10 Cell Reproduction. I. Chromosomes

Biology. Chapter 10 Cell Reproduction. I. Chromosomes Biology Chapter 10 Cell Reproduction I. Chromosomes Long thin molecules that store genetic information. A. Chromosome Structure 1. Rod shaped structure composed of DNA and protein. 2. DNA is wrapped around

More information

Mitosis & Meiosis Practice Test

Mitosis & Meiosis Practice Test Name: DO NOT WRITE ON THIS TEST Class: ALL ID: A Mitosis & Meiosis Practice Test Modified True/False Indicate whether the statement is true or false. If false, change the identified word or phrase to make

More information

Chapter 2 Cells and Cell Division

Chapter 2 Cells and Cell Division Chapter 2 Cells and Cell Division MULTIPLE CHOICE 1. The process of meiosis results in: A. the production of four identical cells B. no change in chromosome number from parental cells C. a doubling of

More information

Sexual Reproduction. The two parent cells needed for sexual reproduction are called gametes. They are formed during a process known as meiosis.

Sexual Reproduction. The two parent cells needed for sexual reproduction are called gametes. They are formed during a process known as meiosis. Sexual Reproduction Recall that asexual reproduction involves only one parent cell. This parent cell divides to produce two daughter cells that are genetically identical to the parent. Sexual reproduction,

More information

Chapter 3 Part 1! 10 th ed.: pp ! 11 th ed.: pp !! Cellular Transport Mechanisms! The Cell Cycle!

Chapter 3 Part 1! 10 th ed.: pp ! 11 th ed.: pp !! Cellular Transport Mechanisms! The Cell Cycle! Chapter 3 Part 1! 10 th ed.: pp. 87 105! 11 th ed.: pp. 90 107!! Cellular Transport Mechanisms! The Cell Cycle! Transport Processes: Passive and Active (1 of 2)! 1. Passive transport! Does not use ATP!

More information

Chapter 3 Part 1! 10 th ed.: pp ! 11 th ed.: pp !! Cellular Transport Mechanisms! The Cell Cycle!

Chapter 3 Part 1! 10 th ed.: pp ! 11 th ed.: pp !! Cellular Transport Mechanisms! The Cell Cycle! Chapter 3 Part 1! 10 th ed.: pp. 87 105! 11 th ed.: pp. 90 107!! Cellular Transport Mechanisms! The Cell Cycle! Transport Processes: Passive and Active (1 of 2)! 1. Passive transport! Does not use ATP!

More information

Reading Assignments. A. Systems of Cell Division. Lecture Series 5 Cell Cycle & Cell Division

Reading Assignments. A. Systems of Cell Division. Lecture Series 5 Cell Cycle & Cell Division Lecture Series 5 Cell Cycle & Cell Division Reading Assignments Read Chapter 18 Cell Cycle & Cell Death Read Chapter 19 Cell Division Read Chapter 20 pages 659-672 672 only (Benefits of Sex & Meiosis sections)

More information

Lecture Series 5 Cell Cycle & Cell Division

Lecture Series 5 Cell Cycle & Cell Division Lecture Series 5 Cell Cycle & Cell Division Reading Assignments Read Chapter 18 Cell Cycle & Cell Death Read Chapter 19 Cell Division Read Chapter 20 pages 659-672 672 only (Benefits of Sex & Meiosis sections)

More information

Chapter 6: Cell Growth and Reproduction Lesson 6.1: The Cell Cycle and Mitosis

Chapter 6: Cell Growth and Reproduction Lesson 6.1: The Cell Cycle and Mitosis Chapter 6: Cell Growth and Reproduction Lesson 6.1: The Cell Cycle and Mitosis No matter the type of cell, all cells come from preexisting cells through the process of cell division. The cell may be the

More information

MEIOSIS LAB INTRODUCTION PART I: MEIOSIS

MEIOSIS LAB INTRODUCTION PART I: MEIOSIS MEIOSIS LAB INTRODUCTION Meiosis involves two successive nuclear divisions that produce four haploid cells. Meiosis I is the reduction division. It is this first division that reduces the chromosome number

More information

Question #1 What must occur in order for Mendel s principles to hold true?

Question #1 What must occur in order for Mendel s principles to hold true? 11.4 Question #1 What must occur in order for Mendel s principles to hold true? An organism with two parents must inherit a single copy of every gene from each parent When that organism produces gametes,

More information

CHAPTER 10 : CELL CYCLE AND CELL DIVISION K C MEENA PGT BIOLOGY KVS

CHAPTER 10 : CELL CYCLE AND CELL DIVISION K C MEENA PGT BIOLOGY KVS CHAPTER 10 : CELL CYCLE AND CELL DIVISION K C MEENA PGT BIOLOGY KVS Cell cycle It is a series of events that takes place in a cell, leading to the formation of two daughter cells from a single mother cell.

More information

2. is the period of growth and development for a cell. 3. During interphase, most cells go through three stages rapid growth and

2. is the period of growth and development for a cell. 3. During interphase, most cells go through three stages rapid growth and Chapter 5 Lesson 1- General Lesson Outline Directions: Use the words below to fill in the outline of the text from lesson one. If the word is used more than once, it is followed by the number of times

More information

Biology I Fall Semester Exam Review 2014

Biology I Fall Semester Exam Review 2014 Biology I Fall Semester Exam Review 2014 Biomolecules and Enzymes (Chapter 2) 8 questions Macromolecules, Biomolecules, Organic Compunds Elements *From the Periodic Table of Elements Subunits Monomers,

More information

MEIOSIS DR. A. TARAB DEPT. OF BIOCHEMISTRY HKMU

MEIOSIS DR. A. TARAB DEPT. OF BIOCHEMISTRY HKMU MEIOSIS DR. A. TARAB DEPT. OF BIOCHEMISTRY HKMU Meiosis is a special type of cell division necessary for sexual reproduction in eukaryotes such as animals, plants and fungi The number of sets of chromosomes

More information