cell cycle 7th

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Page 1: Cell cycle 7th

CELL CYCLECOPY DOWN

THINGS IN

BLACK

21R

Page 2: Cell cycle 7th

PRETHINK

What stages are there to a human life cycle?

Page 3: Cell cycle 7th

PRETHINK

Cells also have a life cycle!

Page 4: Cell cycle 7th

STEPS OF THE CELL CYCLE

• Three stages of cell cycle: interphase, mitosis, and cytokinesis

Page 5: Cell cycle 7th

STEPS OF THE CELL CYCLE

• Interphase—longest phase where cell grows and makes copies of DNA and organelles• Divided up into 3 phases: G1, S, G2• S phase when chromosomes

replicate

Page 6: Cell cycle 7th

STEPS OF THE CELL CYCLE

• Mitosis—nucleus splits (4 steps)• Cytokinesis—cytoplasm splits, get

two new cells

Page 7: Cell cycle 7th

Cell growth

DNA replication