Cell Cycle Control

What is cell differentiation?

• Process by which cells produce more cells
• Process by which cells become specialized
• Process by which cells become unspecialized
• Process by which cells die

Tags

NGSS.HS-LS1-4

NGSS.HS-LS1-1

Apoptosis is

• the process of programmed cell death

• the process of programmed cell growth

• the process of programmed cell birth

• the process of programmed cell regulation

what could be the cause for a cell to undergo apoptosis?

• DNA damage

• Radiation

• Nutrient deficiency

• All of the above

In which stage of the cell cycle does the cell duplicate its DNA?

• G₁

• S

• G₂

• Mitosis

Which is the longest stage of the cell cycle?

• G₁

• S

• Mitosis

• Cytokinesis

What is the first checkpoint of the cell cycle?

• Mitosis checkpoint

• G₁ checkpoint

• G₂ checkpoint

How many cell cycle checkpoints are there?

• 1

• 2

• 3

• 4

Tags

NGSS.HS-LS1-4

Neuron cells, like the one pictured, rarely replicate. Therefore, we consider them to be in the _____ phase.

• G0
• G1
• S
• Delay

Tags

NGSS.HS-LS1-4

Cells stop growing for a period of time or permanently like nerve cells (neurons).

• Apoptosis

• Mitosis

• G0 Phase

• G1 Phase

Which of the following correctly describes cells that are in the G₀ phase?

• Mature nerve and muscle cells are unable to divide and are permanently in G₀.

• Many cells enter G₀ when they reach the checkpoint during the M phase.

• Cells in G₀ are growing and preparing for cell division.

• DNA replication occurs during G₀.