Cell Cycle Regulation

What does NOT happen during interphase?

• growth

• DNA replication 

• obtaining nutrients

• cell divison

Cells of organisms must go through cell division for?

• growth

• repair of damaged cells

• replacement of dying cells.

• All of these

Tags

NGSS.HS-LS1-4

During most of interphase, DNA is found in a relaxed form called

• chromosome

• centromere

• centriole

• chromatin

Cells grow, carry out normal functions, and copy their organelles.

• G1

• S

• G2

• M phase

What is the purpose of the G1 checkpoint?

• To ensure DNA replication occurs without problems

• To allow the cell to continue to the rest of the cycle

• To govern the separation of sister chromatids

• To inhibit cell division in the presence of growth factors

What are the two categories of proteins that regulate the cell cycle?

• Protein kinases and cyclins

• Histones and nucleosomes

• Receptors and signal transduction

• Messengers and plasma membrane

What happens when the regulation of the cell cycle goes wrong?

• Cells divide out of control

• Development of a tumor

• Cancer

• All of the above

What is the primary point where the cell determines whether it will divide or not?

• G1 checkpoint

• S phase

• G2 checkpoint

• M phase

Tags

NGSS.HS-LS1-4

Which phase of the cell cycle involves cell growth?

• G1 phase

• S phase

• G2 phase

• M phase

What is the term for the nondividing state of a cell?

• G Zero phase

• M phase

• S phase

• G2 phase