3- Cells

9. A beaker contains two compartments. Compartment A contains a 20% glucose solution, and compartment B contains a 5% glucose solution. The membrane is permeable to water but impermeable to glucose. Which statement is true at equilibrium? a. The volume in A is greater than the volume in B. b. The volume in A is less than the volume in B. c. The volume remains the same in both compartments. d. Glucose diffuses from A to B.

a. The volume in A is greater than the volume in B.

4. Most of the DNA and genetic information is stored within the a. nucleus. b. Golgi apparatus. c. lysosomes. d. centrioles.

a. nucleus.

3. This semipermeable phospholipid bilayer controls what enters and leaves the cell. a. Mitochondria b. Cell membrane c. Lysosome d. RER

b. Cell membrane

13. What might happen if pure water were administered intravenously (directly into the blood via the veins)? a. The patient would become dehydrated. b. The red blood cells would undergo hemolysis. c. The red blood cells would lose volume and shrink. d. The water would dilute the blood; water would be "pulled" into the capillaries from the tissue spaces.

b. The red blood cells would undergo hemolysis.

1. The selectively permeable membrane a. permits filtration but not diffusion or osmosis. b. determines which substances enter and leave the cell. c. allows for the unrestricted movement of water and electrolytes across the cell membrane. d. permits diffusion but not osmosis.

b. determines which substances enter and leave the cell.

7. The words rough and smooth refer to the a. ribosomes. b. endoplasmic reticulum. c. Golgi apparatus. d. cell membrane.

b. endoplasmic reticulum.

10. With regard to the cell cycle, which of the following is correct? a. The M phase is the same as interphase. b. Cells cannot enter phase G0 when they complete the cycle. c. Cell division occurs during the M phase. d. Prophase, metaphase, anaphase, and telophase occur during phase G1.

c. Cell division occurs during the M phase.

6. Which of the following is an incorrect statement regarding the cellular organelles? a. Most ATP is produced in the mitochondria. b. Lysosomes contain potent enzymes that digest cellular waste and debris. c. Most DNA is located within the Golgi apparatus. d. The RER is involved in protein synthesis.

c. Most DNA is located within the Golgi apparatus.

8. A stem cell develops into a muscle cell. Which of the following most accurately describes this process? a. Apoptosis b. Necrosis c. Neoplastic d. Differentiation

d. Differentiation

2. Which of the following is not true of the mitochondria? a. Numbers of mitochondria reflect the metabolic activity of the cell. b. Mitochondria are the organelles that make most of the body's ATP. c. Mitochondria are located in the cytoplasm. d. Mitochondria are the sites of protein synthesis.

d. Mitochondria are the sites of protein synthesis.

5. Which of the following is common to the RER, ribosomes, and Golgi apparatus? a. ATP-producing organelles b. "House cleaning" by proteolytic enzymes c. Ammonia-producing organelles d. Protein-producing organelles

d. Protein-producing organelles

11. Blood pressure forces water and dissolved solutes out of the capillaries and into the tissue space. This process is called a. osmosis. b. active transport. c. pinocytosis. d. filtration.

d. filtration.

12. Cytology is a. synonymous with physiology. b. the type of metabolism that most cells use to extract energy from food. c. the study of genetics. d. the study of cell structure and function.

d. the study of cell structure and function.