which one of the following option is correct about the active trasport.

a. active trasport reseases energy

b. active transport required energy

c. active transport produces ATP

d. active transport produces a toxic substance

Hello Student
Correct answer is b) Active transport releases energy.
Active tranport is the movement of a substance from a region of lower concentration to higher concentration or we can say that against the concentration gradient.
This process involves the movement the process of free energy gradient, they require the expenditure of energy.