Cell Cycle 1

Three reasons why cells reproduce by asexual reproduction: 1. Growth 2 Three reasons why cells reproduce by asexual reproduction: 1. Growth 2. Repair 3. Replacement 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.

Animated Cell Cycle Interphase Prophase Metaphase Anaphase http://www.cellsalive.com/mitosis.htm Interphase Prophase Metaphase Anaphase Telophase & Cytokinesis

Interphase Longest part of cell life Cell carries out normal activities DNA in long strands called chromatin & DOUBLE Pair Centrioles Are created Centrioles

Interphase Plant Cell Animal Cell Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm

Phase # 1- Prophase Chromosomes coil and become visible Centrioles (or poles) appear and begin to move to opposite end of the cell. Spindle fibers form between the poles. Nuclear membrane disappears. Centrioles Sister chromatids Spindle fibers

Prophase Plant Cell Animal Cell Spindle fibers Centrioles Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm

Metaphase Chromosomes line up in the middle of the cell on the spindle fibers. Centrioles Spindle fibers

Metaphase Plant Cell Animal Cell Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm

Anaphase Chromatids (or halves of chromosomes) separate and begin to move to opposite ends of the cell. Centrioles Spindle fibers

Anaphase Plant Cell Animal Cell Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm

Telophase Chromatids finish separating. Nuclear membrane reforms Chromatids unwind and become chromatin. Nuclei Nuclei Chromatin

Telophase Plant Cell Animal Cell Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm

Cytokinesis Cytoplasm and cell organelles divide evenly Two new cells are formed

Animal Cell Cycle -- Review Interphase                                                              Prophase                                                              Metaphase                                                              Anaphase                                                              Telophase                                                             

Plant Cell Cycle -- Review Interphase                                                              Prophase                                                              Metaphase                                                              Anaphase                                                              Telophase                                                             

REMEMBER! Interphase Prophase I P M A T C Metaphase Anaphase Telophase Cytokinesis I P M A T C A mnemonic to help remember the stages of mitosis. I Pick More Apples Than Chris

Cell Cycle

The Cell Cycle 19

Mitosis Animation http://www.cellsalive.com/mitosis.htm