11.3 - 5

Question 1

Growth factor

Answer 1

One of a group of external regulatory proteins that stimulate the growth and division of cells.

Question 2

Cyclin

Answer 2

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

Question 3

Apoptosis

Answer 3

The process of program cell death.

Question 4

Cancer

Answer 4

Disorder in which some of the body’s cells lose ability to control growth.

Question 5

Tumor

Answer 5

Mass of rapidly dividing cells that can damage surrounding tissue.