Question Bank for 3/20 B.3 L3

What is the main purpose of the cell cycle?

• To allow the cell to grow and divide into two new, identical cells

• To allow the cell to produce energy for the body

• To allow the cell to communicate with other cells

• To allow the cell to repair itself

During which phase of the cell cycle does the cell replicate its DNA?

• G1 phase

• S phase

• G2 phase

• M phase

What is the role of the p53 protein in the cell cycle?

• To act as the checkpoint guardian and ensure the cell has sufficient resources before allowing it to proceed to the next phase

• To control the rate at which the cell divides

• To direct the movement of the chromosomes during mitosis

• To determine when the cell should undergo apoptosis

What is the consequence if a cell skips the checkpoints in the cell cycle and divides without having all the necessary resources?

• The new cells will have the same genetic material as the original cell

• The new cells will have differences in their chromosomes compared to the original cell

• The cell will enter a resting state and not divide

• The cell will undergo apoptosis (cell death)

How does the analogy of the construction foreman and the bridge relate to the role of p53 in the cell cycle?

• The foreman represents the cell, and the bridge represents the cell cycle

• The foreman represents the cell, and the bridge represents the checkpoints

• The foreman represents p53, and the bridge represents the dividing cell

• The foreman represents the cell cycle, and the bridge represents the new cells

In which phase of the cell cycle does the cell primarily focus on acquiring resources like nutrients, proteins, and organelles?

• G1 phase

• S phase

• G2 phase and G1 phase

• M phase and S phase

What is the purpose of the spindle structure that forms during mitosis?

• To organize the DNA into visible chromosomes

• To pull the doubled sets of chromosomes apart and drag them to opposite ends of the cell

• To divide the cytoplasm and create two separate, new cells

• To check the cell's resources at the G2 checkpoint

Which of the following is a key difference between cancer cells and non-cancer cells?

• Cancer cells have more DNA than non-cancer cells

• Cancer cells have fewer organelles than non-cancer cells

• Cancer cells have differences in their chromosomes compared to the non-cancer cells they originated from

• Cancer cells divide more slowly than non-cancer cells

What is the final stage of the cell cycle called?

• G1 phase

• S phase

• G2 phase

• M phase (Mitosis)

What happens at the final M checkpoint in the cell cycle?

• The cell's resources are checked to ensure all requirements were met

• The DNA is replicated

• The cell membrane pinches inward, dividing the cytoplasm

• The spindle fibers pull the chromosomes apart