Question

If ATP breakdown (hydrolysis) is inhibited, which of the following types of movement across cell membranes is also inhibited?

A. Active transport.
B. Passive diffusion.
C. Facilitated diffusion.
D. Osmosis.

Answer 1

ATP inhibition would inhibit active transport across cell membranes because it requires ATP to function against the concentration gradient, unlike passive transport mechanisms.

Step-by-step explanation:

If ATP breakdown (hydrolysis) is inhibited, the type of movement across cell membranes that would also be inhibited is active transport. Active transport requires energy in the form of ATP to move substances from areas of lower concentration to higher concentration against the concentration gradient. Passive diffusion, facilitated diffusion, and osmosis are processes that do not directly require ATP as they rely on the movement of substances down concentration gradients.