Cell Cycle and Cell Differentiation Review

Which of the following happens when a cell divides?

• The cell’s volume increases.
• It becomes more difficult for the cell to get rid of wastes.
• Each daughter cell receives its own copy of the parent cell’s DNA.
• It becomes more difficult for the cell to get enough oxygen and nutrients.

The process by which a cell divides into two daughter cells is called

• cell division.
• metaphase.
• interphase.
• anaphase.

A multicellular organism begins life as a single cell—a fertilized egg with a complete set of chromosomes. The picture shows how the cell divides to become two cells, then four cells, eight cells, and so on. Which of the following statements best describes what happens during this process?

• Chromosomes are duplicated before cell division so that each new daughter cell has a complete set.
• Chromosomes are divided evenly during cell division so that each new daughter cell has an equal share of the original set.
• Chromosomes are stored in the original cell to direct the division of all daughter cells, which do not have their own chromosomes.
• Chromosomes are randomly distributed during cell division so that some new cells have partial sets while others have complete sets.

When during the cell cycle are chromosomes visible?

• only during interphase
• only when they are being replicated
• only during cell division
• only during the G1 phase

During which phase in the cell cycle does mitosis happen?

• M phase
• G1 phase
• G2 phase
• s phase

Which pair includes a phase of the cell cycle and a cellular process that occurs during that phase?

• G1 phase, DNA replication
• G2 phase, preparation for mitosis
• S phase, cell division
• M phase, cell growth

When during the cell cycle is a cell’s DNA replicated?

• G1 phase
• G2 phase
• S phase
• M phase

Which event occurs during interphase?

• The cytoplasm divides
• Centrioles duplicate.
• Spindle fibers begin to form.
• Centromeres divide.

Which of the following is a correct statement about the events of the cell cycle?

• Little happens during the G1 and G2 phases.
• DNA replicates during cytokinesis.
• The M phase is usually the longest phase.
• Interphase consists of the G1, S, and G2 phases.

Cell division is represented in Figure 10–3 by the letter

• A
• B
• C
• D