bio quiz 5.1-3

1) In which stage of the cell cycle do the nucleus and its contents divide?

• a) synthesis
• b) gap 1
• c) mitosis
• d) gap 2

2) During the gap 1 stage of the cell cycle, a cell

• a) splits into two new cells.
• b) carries out its normal functions.
• c) duplicates its DNA.
• d) divides its cytoplasm.

3) Which of the following phrases best describes cytokinesis?

• a) division of the cytoplasm
• b) division of the nucleus
• c) division of DNA
• d) division of surface area

4) Which statement is true about the rates of cell division in eukaryotes?

• a) They remain the same for the life of the organism.
• b) They are faster than that of prokaryotes.
• c) They increase with the age of the organism.
• d) They vary greatly within an organism.

5) Which of the following limits the maximum size of a cell?

• a) the stage of the cell cycle
• b) the ratio of cell surface area to volume
• c) the number of mitochondria in the cell
• d) the size of the organism

6) The process of organizing and condensing DNA into its compact form takes place at the start of

• a) interphase.
• b) metaphase.
• c) mitosis.
• d) cytokinesis

7) During which phase of mitosis do sister chromatids separate from each other?

• a) prophase
• b) metaphase
• c) anaphase
• d) telophase

8) Proteins that bind to cells and stimulate cell division are called

• a) enzymes.
• b) kinases.
• c) growth factors.
• d) carcinogens.

9) What is the term for the programmed death of cells?

• a) kinase
• b) cyclin
• c) carcinogen
• d) apoptosis

10) Two internal factors that are important in advancing the cell cycle are

• a) kinases and cyclins.
• b) hormones and enzymes.
• c) phosphates and enzymes.
• d) proteins and platelets.