Transcript Animal Cell Cycle

Cell Cycle
1
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.
Animated Cell Cycle
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
Centrioles
chromatin & DOUBLE
 Pair Centrioles
Are created
Animal Cell
Plant 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
Animal Cell
Plant 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
Animal Cell
Plant 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
Animal Cell
Plant Cell
Photographs from: http://www.bioweb.uncc.edu/biol1110/Stages.htm
Telophase
Chromatids finish separating.
• Nuclear membrane reforms
• Chromatids unwind and become
chromatin.
•
Nuclei
Chromatin
Nuclei
Animal Cell
Plant 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
Interphase
Plant Cell Cycle -- Review
Interphase
Prophase
Metaphase
Anaphase
Telophase
Interphase
18
19
19
http://www.cellsalive.com/mitosis.htm