Test Bank For The Human Body in Health and Illness 5th Edition By Herlihy

Test Bank For The Human Body in Health and Illness 5th Edition By Herlihy

Chapter 3: Cells Test Bank

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.

ANS: C

12. What are the hairlike structures located on the outer surface of the cell membrane?

a.	Mitochondria
b.	Ribosomes
c.	Cilia
d.	Centrioles

ANS: C

13. What is the extensive internal membrane system that forms channels and is concerned with the synthesis of protein and steroids?

a.	Mitochondria
b.	Lysosomes
c.	Endoplasmic reticulum
d.	DNA

ANS: C

14. Lysosomes are filled with

a.	powerful enzymes that destroy cellular debris and pathogens.
b.	cilia.
c.	DNA.
d.	blood.

ANS: A

15. Which of the following best describes the power or driving force for active transport?

a.	ATP
b.	Pressure
c.	DNA
d.	H

ANS: A