Question

In addition to functioning as a transporter, primary active transporters also function as ________ in order to make use of energy.

a) Channels.
b) Enzymes.
c) Receptors.
d) Structural proteins.

Answer 1

Primary active transporters function as pumps in order to make use of energy. These pumps use ATP to transport substances across the membrane against their concentration gradients.

Step-by-step explanation:

Primary active transporters not only function as transporters, but also as pumps in order to make use of energy. These pumps use energy, usually ATP, to transport substances across the membrane against their concentration gradients. They are specific carrier proteins that undergo conformational changes in response to ATP binding and hydrolysis, allowing them to move substances against a concentration or electrochemical gradient.