11. Which of the following is not a characteristic of active transport?
(A) has a saturable uptake rate.
(B) use of ATP or proton motive force as a source of metabolic energy.
(C) can move materials against a concentration gradient.
(D) ABC transporters are important examples of active transport systems.
chemically modifies the molecules as it is brought into cell.
阿摩線上測驗
登入