Transcript Slide 1

Cell Cycle
Interphase
• Cell normally functioning
• Phase cell is in most of the time
• G1, G0, S, G2
Mitosis-PMAT
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Prophase-Prepare
Metaphase-Middle
Anaphase-Apart
Telophase-THE END
Prophase-PREPARE
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Cell PREPARES to divide
Centrioles get into place
Spindle fibers form
Chromosomes condense
Nuclear envelope dissolves
Metaphase-MIDDLE
• Chromosomes line up in the MIDDLE of
the cell
Anaphase-APART
• Chromosomes are pulled APART by the
centrioles and spindle fibers
Telophase-THE END
• The chromosomes are at each end of the
cell and nuclear envelops form
• The cell divides in two-Cytokinesis
• THE END
What does PMAT stand for?
Prophase Metaphase Anaphase Telophase
Prepare Middle
Apart
THE END
Mitosis
Controls on Cell Division
• Cells only divide when growth is needed
• Cyclins and Cyclin Dependent Kinases
(CDK) are proteins that regulate the timing
of the cell cycle
Uncontrolled Cell Growth
• When cells lose the ability to control
growth it results in a mass of cells called a
tumor.
• Benign tumors
– Do not metastasize (spread)
• Malignant tumors-Cancer
– Metastasize
Skin Cancer
Lung Cancer
Cancer