Which of the following BEST explains whether cotransport is an active process or a passive process?
A.
It is active because ATP is needed to transport both chemicals across their concentration gradients.
B.
It is active because ATP is needed to establish a concentration gradient for one chemical to power the transport of the other chemical.
C.
It is passive because both chemicals move down their concentration gradients.
D.
It is passive because the movement of one chemical powers the movement of the other chemical.
1 answer
B. It is active because ATP is needed to establish a concentration gradient for one chemical to power the transport of the other chemical.
1 answer