1. Which organelle in an animal cell is responsible for maintaining cellular homeostasis? A. cell wall B. Cytoplasm C. cell membrane D. mitochondria C

2. What is the main difference between anaerobic cellular respiration and aerobic cellular respiration? A. Aerobic cellular respiration requires water. B. Anaerobic cellular respiration requires water. C. Aerobic cellular respiration produces more energy. D. Anaerobic cellular respiration produces more energy. C

3. What is the end result of diffusion across a cell’s membrane. A
What is the end result of diffusion across a cell’s membrane? A. higher concentrations of the solute on the outside of a cell than the inside B. higher concentrations of the solute on the inside of the cell than the outside C. equal concentrations of water on both the inside and outside of the cell D. equal concentrations of the solute on both the inside and outside of a cell D

4. Endocrine glands release chemicals (hormones) in one part of an organism that affect another part of the organism. What causes the release of hormones by the endocrine system? A. increase in body temperature B. change in homeostasis C. mitotic cell division D. genetic manipulation of cells B

5. Which are three ways the body maintains temperature homeostasis. A
Which are three ways the body maintains temperature homeostasis? A. by panting, shivering, and sleeping B. by growing hair, shivering, and sleeping C. by breathing, expansion of blood vessels, and sweating D. by expansion of blood vessels, shivering, and sweating D

6. Which process explains the diffusion of substances across permeable membranes without any energy being expended? A. active transport B. facilitated diffusion C. passive transport D. selective permeability C

7. How does homeostasis maintain water balance in an animal. A
How does homeostasis maintain water balance in an animal? A. The hypothalamus releases a hormone to the liver to slow down water removal from the blood. B. The pituitary gland releases a hormone to the liver, which causes less water to be absorbed from the nephrons. C. The pituitary gland releases a hormone to the kidneys, which causes more water to be reabsorbed from the nephrons. D. The hypothalamus increases water available to the body, and the pituitary gland decreases the amount of water available to the body. C

8. What is the basic function of adenosine triphosphate. A
What is the basic function of adenosine triphosphate? A. It carries energy within the cell. B. It transports water through the process of osmosis. C. It uses carbon dioxide and water to photosynthesize. D. It transports material across a selectively permeable membrane. A

9. A cell is placed into a salt solution
A cell is placed into a salt solution. The salt concentration is greater in the solution than inside the cell. Which best describes what will most likely happen? A. Water will flow into the cell by active transport. B. Water will flow into the cell by passive transport. C. Water will flow out of the cell by active transport. D. Water will flow out of the cell by passive transport. D

10. Which explains how ATP is made in a cell. A
Which explains how ATP is made in a cell? A. The sodium potassium pump creates ATP in the cell. B. Coupled channels carry ADP into the cell to form ATP. C. The proton pump causes the production of ATP from ADP in the cell. D. ATP uses facilitated diffusion to create energy in the cell. C