Answer:
Carrier proteins help the molecules to go through the cell's membrane.
Step-by-step explanation:
There are several kinds of intermembrane proteins that play, mostly, transport roles. Carrier proteins help the molecules go through the membrane with the use of energy, could be ATP, or a bomb. Bombs are proteins that use the movement of one molecule to get other through, for example Na+ K+ bomb. In any case, the protein promotes the physical movement with the use of energy.