ATI RN
Cells and Tissues Questions and Answers Questions
Question 1 of 5
Facilitated diffusion differs from active transport because facilitated diffusion:
Correct Answer: C
Rationale: Diffusion always refers to movement from high to low concentration(without energy expenditure). Facilitated refers to the assistance provided by a transport molecule that is designed for the purpose.
Question 2 of 5
What is the major component of the plasma membrane of a cell?
Correct Answer: A
Rationale: Cholesterol and proteins are also present in the plasma membrane but as more minor components.
Question 3 of 5
In a cell cycle which phase takes the longest time to complete:
Correct Answer: B
Rationale: Interphase is the time when the cell is performing its normal function and not dividing.
Question 4 of 5
Which of the base pairings in DNA would be correct?
Correct Answer: A
Rationale: A pairs with T, while C pairs with G.
Question 5 of 5
Providing immunity is a vital function of which body system?
Correct Answer: D
Rationale: The lymphatic system plays a crucial role in immunity by producing and transporting immune cells.