Chapter 03: Cells Herlihy: The Human Body in Health and Illness, 6th Edition

Chapter 03: Cells
Herlihy: The Human Body in Health and Illness, 6th Edition


MULTIPLE CHOICE

1. Which of the following is considered the control center of the cell?
a. Mitochondrion
b. Nucleus
c. Lysosome
d. Centriole
ANS: B

2. The mitochondrion is called the power plant of the cell because within the
mitochondrion.
a. most of the ATP is produced
b. all protein synthesis occurs
c. all DNA is located
d. all ribosomes are located
ANS: A

3. Which of the following is (are) found on the rough endoplasmic reticulum?
a. Ribosomes
b. Cilia
c. Lysosomes
d. DNA

ANS: A

4. The rough ER is the site of
a. fatty acid and steroid synthesis.
b. Krebs cycle activity.
c. protein synthesis.
d. intracellular water storage.
ANS: C

5. Which of the following is most associated with the ribosome?
a. ATP production
b. Intracellular housecleaning
c. Glycogen storage
d. Protein synthesis
ANS: D

6. What is the trANSport mechanism in this description: A passive process that “pulls” water
from
an area where there is more water to an area where there is less water?
a. Filtration
b. Endocytosis
c. An ATP-driven pump

, d. Osmosis
ANS: D

7. What is the trANSport mechanism in this description: A passive process that uses a
pressure difference as its driving force?
a. Facilitated diffusion
b. An ATP-driven pump
c. Diffusion
d. Filtration
ANS: D

8. A beaker is divided into two compartments by a semipermeable membrane. Compartment A
contains a 20% NaCl solution and compartment B contains a 50% NaCl solution. The
membrane is permeable to water but not to Na+ or Cl–. Initially,
a. water diffuses from compartment B to compartment A.
b. Na+ diffuses from compartment B to compartment A.
c. Na+ diffuses from compartment A to compartment B.
d. water diffuses from compartment A to compartment B.
ANS: D

9. A beaker is divided into two compartments by a semipermeable membrane. Compartment A
contains a 20% NaCl solution and compartment B contains a 50% NaCl solution. The
membrane is permeable to water but not to Na+ or Cl–. At equilibrium, the
a. volume of water in compartment A will be greater than the volume in compartment
B.
b. volume in both compartments A and B will be equal.
c. concentration of compartment A will decrease.
d. volume in compartment B will be greater than the volume in compartment A.
ANS: D

10. A beaker is divided into two compartments by a semipermeable membrane. Compartment A
contains a 20% NaCl solution while compartment B contains a 50% NaCl solution. The
membrane is permeable to both water and Na+ and Cl–. Initially,
a. Na+ and Cl– diffuse from compartment B to compartment A.
b. water diffuses from compartment B to compartment A.
c. Na+ and Cl– diffuse from compartment A to compartment B.
d. Na+ diffuses from compartment A to compartment B and Cl– diffuses from
compartment B to compartment A.
ANS: A

11. A beaker is divided into two compartments by a semipermeable membrane. Compartment A
contains a 20% NaCl solution and compartment B contains a 50% NaCl solution. The
membrane is permeable to both water and Na+ and Cl–. At equilibrium, the
a. volume in compartment A will be greater than the volume in compartment B.
b. volume in compartment B will be greater than the volume in compartment A.
c. concentrations and volumes will be the same in both compartments.
d. concentration of salt is greater in compartment A than in compartment B.