The cell cycle

Jan 03, 2013

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Normal Control of Cell Cycle. The cells of some tissues divide frequently throughout lifespane.g. ??Cell division occurs rarely or not at all in other tissuese.g. ???. . Mitogens-agents that stimulate mitosis Ex. Growth Factors. Tumors can express autocrine production. Growth produced depends o

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The cell cycle

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The Cell Cycle

The Cell Cycle. Mitosis Pg. 204- 210 in your book. Quick Facts About the Cell Cycle. The cell cycle is common to all living things It is a sequence of growth and division of a cell Two major periods of the cell cycle: I. Interphase II. Mitosis. Interphase.

756 views • 18 slides

The Cell Cycle

The Cell Cycle. Brittany Amanda Biology 9/23/03. Overview. G1 phase S phase G2 Phase Mitosis Prophase Metaphase Anaphase Telophase Cytokinesis Meiosis.

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The Cell Cycle

The Cell Cycle. Mitosis : the process by which cells reproduce themselves, resulting in daughter cells that contain the same amount of genetic material as the parent cell. . Animated Mitosis Cycle. http://www.cellsalive.com/mitosis.htm. I nterphase P rophase M etaphase A naphase

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The Cell Cycle

The Cell Cycle. Chapter 12. Cell division - process cells reproduce; necessary to living things. Cell division due to cell cycle ( life of cell from origin in division of parent cell until own division into 2) Unicellular organisms - results in many new members.

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The Cell Cycle

The Cell Cycle. Pages 1067-1071, 1087-1088, 1105-1107. S phase. -Functions -Duplicate the DNA -Protein packing must be reproduced -2 issues facing DNA replication -Accuracy of replication -Copy DNA only once. Control of DNA Duplication. 2 steps in Replication

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The Cell Cycle

The Cell Cycle. 1/27/12. Objective: Understanding the components of the cell cycle Do now: Do the hokey pokey, turn yourself around. Do later: Draw a cell going through the four phases of mitosis, and label the major events in each phase. Quiz time!.

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The Cell Cycle

CONSISTING OF INTERPHASE ,MITOTIC PHASE, & CYTOKINESIS. The Cell Cycle. The Mitosis Puzzle. Lay blank sheets lengthwise to each other and tape them together. Write Interphase, Prophase, Metaphase, Anaphase, & Telophase across the top of the sheet.

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The cell cycle

The cell cycle. Interphase . http://mpronovost.ep.profweb.qc.ca/BIONP1/bionp1_division.html. http://district.bluegrass.kctcs.edu/rmccane0001/shared_files/bio137website/BIO137/137Lab2/Lab2MitosisModelAnswers.html.

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The Cell Cycle

The Cell Cycle. The “life span” of a cell can be broken up into 3 distinct parts While distinct, note that the stages occur continuously, one after another. Interphase. Longest phase Also called the resting phase

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The Cell Cycle

The Cell Cycle. Imagine your skin…. Cells have a life cycle. It goes from birth…to birth…to birth…to birth… Is there death? Eventually… Cells (most human cells at least) are limited in the number of times they can reproduce.

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The Cell Cycle

The Cell Cycle. Why are cells so small??. What limits the size of a cell?? Most cells are between .002 - .2 millimeters. What limits the size of a cell?. Diffusion Very fast and efficient over short distances Becomes slow and inefficient as the distances become larger

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The Cell Cycle

The Cell Cycle. How cells divide to make new cells. Just like people have phases of development,. Cells have phases too. In somatic (body) cells, a parent cell produces 2 daughter cells. The purpose of cell division is for growth and repair of tissue. Three Phases or Stages. Interphase

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The Cell Cycle

The Cell Cycle. Sections 5.1-5.2. The cell cycle is a regular pattern of growth, DNA replication, and cell division. Four Main Stages. The cell cycle has four main stages: Gap 1 (G1) Synthesis (S) Gap 2 (G2) Mitosis (M) Prophase Metaphase Anaphase Telophase Cytokinesis. Interphase.

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The cell cycle

The cell cycle. The Cell Cycle. Interphase – Three phases. G1 – Growth & ordinary cell processes S – DNA is copied (replication) G2 – Organelles are copied. Mitosis: First phase - prophase. DNA supercoils. Prophase (continued). Nuclear membrane breaks down

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The Cell Cycle…

The Cell Cycle…. The cell cycle is a cycle of growth, development, and division. It is made up of different phases: 1. Interphase 2. M itosis 3. Cytokinesis. Interphase. Interphase - cell grows and develops Cells spend the longest period of time in interphase It has 3 parts:

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The Cell Cycle

The Cell Cycle. Reproduction. Asexual Reproduction: Involves only 1 organism New individual is genetically identical to parent- clone Single celled organisms - binary fission : cell divides in 2. Multicelled organisms: Budding Plant propagation Parthenogenesis. Reproduction.

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The Cell Cycle

The Cell Cycle. THE CELL CYCLE. The Cell Cycle. Cell Reproduction One cell (parent cell) reproduces to make 2 identical cells (daughter cells ). There are three main divisions of the cell cycle. INTERPHASE G1, S, G2 MITOSIS PMAT Cytokinesis.

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The Cell Cycle

Molecular Biology II. The Cell Cycle. The Life Cycle of Cells. The Cell Cycle Follows a Regular Timing Mechanism. Newly born cells grow and perform their functions. After reaching a specific point in their life cells divide via mitosis to give rise to daughter cells.

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The Cell Cycle

The Cell Cycle. Why do cells divide?. For growth and repair To get food, water, and waste in and out of our bodies quickly. What is the Cell Cycle?. Series of events that take place from one cell division to the next Constantly repeated. Three Stages of the Cell Cycle. Interphase

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The Cell Cycle

The Cell Cycle. Growth, reproduction and functions. Cell Cycle has Four Main Stages. Gap 1 Synthesis Gap 2 Mitosis. What is Mitosis?.

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The Cell Cycle

The Cell Cycle. Mitosis & Cytokinesis. Why do living things grow?. This baby king penguin grows because he produces more and more cells. How do cells know when to quit dividing?. Cell growth is CAREFULLY controlled. Only certain cells are allowed to divide rapidly.

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The Cell Cycle

The Cell Cycle. The Life of a Cell. Cells pass through different stages in their lives These stages = Cell Cycle Begins when cell forms, and ends when cell divides Before division, has to copy its DNA. Prokaryotic cells: simple! No membrane covered organelles, small circle of DNA.

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