Cells Cycle

During which phase do cells spend most of their time?

• Mitosis

• Apoptosis

• Cytokinesis

• Interphase

Which cells frequently perform mitosis?

• Neurons

• Red blood cells

• Hair follicle cells

• Muscle cells

Why is it that if you have a brain injury, or spine injury, you might not heal?

What is the function of Cell Checkpoints?

• making sure the cels grows correctly

• making sure the DNA is replicated corectly

• making sure the cell organelles are working the way they should

• making sure the cell divides

What happens if a cell fails its checkpoint?

• It makes more DNA

• It becomes unregulated mitosis

• It stops growing

• It repairs itself

What is a tumor?

• A mass of cancer cells

• A phase in the cell cycle

• A type of checkpoint

• A mass of healthy cells

What are some cancers you've heard of before?

5.A

This model of the cell cycle includes two arrows that each represent a process in the cycle. What stages of the cell cycle are represented by each arrow?

a

b

Interphase

M Phase

Label the following stages of the cell cycle

a

b

Interphase

Mitosis

Label the stages of Interphase in this graph

a

b

c

G1- grow

S- Replication

G2- prep to divide