A) Active transport releases energy
B) Active transport requires energy
C) Active transport produces ATP
D) Active transport produces a toxic substance
Correct Answer: B
Solution :
Active transport is the movement of a substance from a region of lower concentration to region of higher concentration, i.e. against the concentration gradient. This process involves the movement of free energy gradient, they require the expenditure of energy from the break-down of ATP and are therefore, sensitive to factors affecting metabolism.
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