Cell Cycle

Interphase

Mitosis

Interphase

• Cell normally functioning

• Phase cell is in most of the time

• G1, G0, S, G2

Mitosis-PMAT

• Prophase-Prepare

• Metaphase-Middle

• Anaphase-Apart

• Telophase-THE END

Prophase-PREPARE

• 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