ATI RN
Cells and Tissues Multiple Choice Questions Questions
Question 1 of 5
What is the function of phospholipids in the plasma membrane?
Correct Answer: D
Rationale: Molecules that are soluble in water cannot pass through lipid(fat). So the phospholipids are a barrier. The functions described by B.& C. are performed by other molecules in the plasma membrane.
Question 2 of 5
Which organelle is the site of ATP production?
Correct Answer: C
Rationale: The mitochondria is where ATP is produced.
Question 3 of 5
Membrane proteins perform the following functions EXCEPT one. Which One?
Correct Answer: A
Rationale: The glycocalyx refers to molecules in the plasma membrane that have a carbohydrate chain attached(prefix "glyco-").
Question 4 of 5
What is the name of the mechanism that ensures that there is a higher concentration of sodium ions in the extracellular fluid than in the intracellular fluid?
Correct Answer: B
Rationale: The "pump" exchanges Na for K and uses energy from ATP to function.
Question 5 of 5
Which of the following is an epithelial tissue?
Correct Answer: B
Rationale: The adrenal gland is glandular epithelial tissue.