Question

which type of transport proteins use energy from atp indirectly?
o ion channels
o protein pumps
o coupled transport proteins
o aquaporins
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Explanation:

Ion channels allow ions to pass through membranes down their concentration gradient without using ATP. Protein pumps use ATP directly to move substances against their concentration gradient. Aquaporins are channels for water movement and do not use ATP. Coupled transport proteins use the energy from the concentration gradient of one substance (established by an ATP - using pump) to move another substance, thus using ATP indirectly.

Answer:

C. Coupled transport proteins