Cell Division The Cell Cycle: Interphase Mitosis Cytokinesis.
Cell Cycle Interphase Mitosis. Interphase Cell normally functioning Phase cell is in most of the...
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Transcript of Cell Cycle Interphase Mitosis. Interphase Cell normally functioning Phase cell is in most of the...
Cell Cycle
Interphase
Mitosis
Interphase
• Cell normally functioning
• Phase cell is in most of the time
• Cell Grows and DNA is replicated
Mitosis-PMAT
• Prophase-Prepare
• Metaphase-Middle
• Anaphase-Apart
• Telophase-THE END
• DO NOT WRITE WHAT IS ON THIS SLIDE!
Prophase-PREPARE
• Cell PREPARES to divide
• Centrioles get into place
• 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 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