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CHAPTER 8 Mitosis SP 2013.

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Presentation on theme: "CHAPTER 8 Mitosis SP 2013."— Presentation transcript:

1 CHAPTER 8 Mitosis SP 2013

2 Chapter 9 Cellular Reproduction
Section 1: Cellular Growth Section 2: Mitosis and Cytokinesis Section 3: Cell Cycle Regulation

3 Ratio of Surface Area to Volume
Chapter 9 Cellular Reproduction 9.1 Cellular Growth Ratio of Surface Area to Volume

4 Chapter 9 Cellular Reproduction 9.1 Cellular Growth As the cell grows, its volume increases much more rapidly than the surface area. The cell might have difficulty supplying nutrients and expelling enough waste products.

5 Transport of Substances
Chapter 9 Cellular Reproduction 9.1 Cellular Growth Transport of Substances Substances move by diffusion or by motor proteins. Diffusion over large distances is slow and inefficient. Small cells maintain more efficient transport systems.

6 Cellular Communications
Chapter 9 Cellular Reproduction 9.1 Cellular Growth Cellular Communications The need for signaling ______to move throughout the cell also limits cell _____. Cell ____ affects the ability of the cell to communicate instructions for cellular functions.

7 ___ ________ prevents the cell from becoming too large.
Chapter 9 Cellular Reproduction 9.1 Cellular Growth The Cell Cycle ___ ________ prevents the cell from becoming too large. It also is the way the cell reproduces so that you grow and heal certain injuries. Cells reproduce by a cycle of growing and dividing called the ___ _______.

8 Chapter 9 Cellular Reproduction 9.1 Cellular Growth __________ is the stage during which the cell grows, carries out cellular functions, and replicates. _________ is the stage of the cell cycle during which the cell’s nucleus and nuclear material divide. ___________ is the method by which a cell’s cytoplasm divides, creating a new cell.

9 The Stages of Interphase
Chapter 9 Cellular Reproduction 9.1 Cellular Growth The Stages of Interphase The first stage of ____________, G1 The cell is growing, carrying out normal cell functions, and preparing to replicate DNA.

10 The Second Stage of Interphase, S
Chapter 9 Cellular Reproduction 9.1 Cellular Growth The Second Stage of Interphase, S The cell copies its _____in preparation for cell division.

11 The Third Stage of Interphase, G2
Chapter 9 Cellular Reproduction 9.1 Cellular Growth The Third Stage of Interphase, G2 The cell prepares for the division of its nucleus.

12 How do little elephants grow up to be BIG elephants?

13 Why do animals shed their skin?

14 The process of asexual reproduction begins after a sperm fertilizes an egg.

15 Three reasons why cells reproduce by asexual reproduction: 1
Skin cancer - the abnormal growth of skin cells - most often develops on skin exposed to the sun. Cell that reproduce by asexual reproduction reproduce constantly.

16 Animated Mitosis Cycle
Interphase Prophase Metaphase Anaphase Telophase & Cytokinesis

17 Interphase occurs before mitosis begins
Chromosomes are ___________(# doubles) Chromosomes appear as threadlike coils (____________) at the start, but each chromosome and its copy(_______ chromosome) change to sister chromatids at end of this phase CELL MEMBRANE Nucleus Cytoplasm

18 Interphase Plant Cell Animal Cell
Photographs from:

19 Prophase 1st step in Mitosis
Mitosis begins (cell begins to divide) ___________(or poles) appear and begin to move to opposite end of the cell. Spindle fibers form between the poles. Centrioles Sister chromatids Spindle fibers

20 Prophase Plant Cell Animal Cell Spindle fibers Centrioles
Photographs from:

21 Metaphase 2nd step in Mitosis
____________(or pairs of chromosomes) attach to the spindle fibers. Centrioles Spindle fibers

22 Metaphase Plant Cell Animal Cell
Photographs from:

23 Anaphase 3rd step in Mitosis
______________(or pairs of chromosomes) separate and begin to move to opposite ends of the cell. Centrioles Spindle fibers

24 Anaphase Plant Cell Animal Cell
Photographs from:

25 Telophase 4th step in Mitosis
Two new ________ form. Chromosomes appear as chromatin (threads rather than rods). Mitosis ends. Nuclei Nuclei Chromatin

26 Telophase Plant Cell Animal Cell
Photographs from:

27 Cytokinesis occurs after mitosis
Cell membrane moves inward to create two daughter cells – each with its own nucleus with identical ________________.

28 Animal Mitosis -- Review
Interphase                                                              Prophase                                                              Metaphase                                                              Anaphase                                                              Telophase                                                             

29 Plant Mitosis -- Review
Interphase                                                              Prophase                                                              Metaphase                                                              Anaphase                                                              Telophase                                                             

30 IPMATC REMEMBER! Interphase Prophase Metaphase Anaphase Telophase
Cytokinesis IPMATC A mnemonic to help remember the stages of mitosis. I Pray More At The Church

31 Cell Cycle

32 - Cell Division The Cell Cycle 32

33 Mitosis Animation

34 9.3 Cell Cycle Regulation Normal Cell Cycle
Chapter 9 Cellular Reproduction 9.3 Cell Cycle Regulation Normal Cell Cycle Different __________ combinations _______ other activities, including DNA ___________, protein _____________, and nuclear ___________ throughout the ______ ______________.

35 _____________ __________ Checkpoints
Chapter 9 Cellular Reproduction 9.3 Cell Cycle Regulation _____________ __________ Checkpoints The cell _________________ has built-in ___________ that _____________ the cycle and can __________ it if something goes __________. ______________ checkpoints also have been identified in ____________.

36 ______________ Cell Cycle: ___________
Chapter 9 Cellular Reproduction 9.3 Cell Cycle Regulation ______________ Cell Cycle: ___________ __________ is the __________ growth and _______ of cells. Cancer cells can ___ an __________ by ________ out _____ cells, resulting in the _______ of tissue _________.

37 Chapter 9 Cellular Reproduction 9.3 Cell Cycle Regulation ___________ of Cancer The __________ that occur in the ___________ of cell ________ and _________ of cancer cells are due to ___________. Various _____________ factors can ________ the occurrence of ________ cells.

38 Causes of Cancer ___________________

39 _______________ cell __________
Chapter 9 Cellular Reproduction 9.3 Cell Cycle Regulation Apoptosis _______________ cell __________ __________ going through apoptosis actually _________ and _________ in a ____________ process.

40 Chapter 9 Cellular Reproduction 9.3 Cell Cycle Regulation Stem Cells ____________ cells that can _______ into __________ cells when _____ the right ____________

41 Chapter 9 Cellular Reproduction 9.3 Cell Cycle Regulation Embryonic Stem Cells After ___________, the resulting ______ of cells _________ repeatedly until there are about _____-____ cells. These cells have ________ become _____________.

42 Chapter 9 Cellular Reproduction 9.3 Cell Cycle Regulation Adult Stem Cells Found in _________ tissues in the body and __________ be used to _________ and ___________ the ________ kind of tissue _________ controversial because the adult stem cells can be ____________ with the ___________ of their donor Cellular Reproduction


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