11.3

Question 1

Under what conditions do cells stop growing

Answer 1

Most cells will divide until they come into contact with one another. When a bone breaks, new cells from to start the healing process.

Question 2

What condition to cells start growing

Answer 2

When a cut or breaks occurs, cells at the edges of the injury are stimulated to divide rapidly.

Question 3

Cyclins

Answer 3

One of a family of proteins that regulates the cell cycle in eukaryotic cells

Question 4

Apoptosis

Answer 4

The process of a programmed cell death. First the cell and it’s chromatib shrink, the parts of the cells membrane break off, neighboring cells quickly clean up the mess.

Question 5

Cancer

Answer 5

A disorder in which some the body’s cells lose the ability to control growth.

Question 6

Tumor

Answer 6

Mass of rapidly dividing cells that can damage the surrounding tissue.

Question 7

Benign tumor

Answer 7

A tumor that does not spread to the surrounding healthy tissue or other parts of the body.

Question 8

Malignant tumor

Answer 8

A tumor that invades and destroy surrounding tissue.

Question 9

What causes cancer

Answer 9

Uncontrolled cell dividing

Question 10

What are the three ways cancer can be treated

Answer 10

1. Surgically removed
2. Treated with radiation beams
3. Chemotherapy kills all dividing cells good and bad