Which of the following statements is correct about passive diffusion?
A) It is a process in which molecules move from a region of higher concentration to a region of lower concentration (or down a concentration gradient).
B) It may require a transport protein.
C) It is a process in which molecules move from a region of lower concentration to one of higher concentration (or up a concentration gradient).
D) It requires an expenditure of energy by the cell.
E) It involves movement of molecules down a concentration gradient and may require a transport protein.

Question

Quizplus · Accepted Answer

The Answer of Which of the following statements is correct about passive diffusion?
A) It is a process in which molecules move from a region of higher concentration to a region of lower concentration (or down a concentration gradient).
B) It may require a transport protein.
C) It is a process in which molecules move from a region of lower concentration to one of higher concentration (or up a concentration gradient).
D) It requires an expenditure of energy by the cell.
E) It involves movement of molecules down a concentration gradient and may require a transport protein.

Which of the Following Statements Is Correct About Passive Diffusion