Module 25 Terms - Regulation of the Cell Cycle

Question 1

Cancer

Answer 1

A disease marked by uncontrolled cell division

Question 2

Cyclins

Answer 2

A family of proteins whose concentrations rise during mitosis and fall during interphase. Bind to and activate cyclin-dependent kinases (CDKs)

Question 3

Cyclin-dependent kinases

Answer 3

Kinases whose activity depends on binding cyclins. Always present within the cell but only active when bound to a specific cyclin. These kinases allow the cell cycle to progress

Question 4

Checkpoints

Answer 4

Mechanisms that block the cyclin-CDK activity required for the next phase, pausing the cell until preparations are complete or damage is repaired

Question 5

Apoptosis

Answer 5

A process by which cells die in an orderly way with a distinct set of cellular changes