Question

One way of balancing the concentration of ions and molecules within a cell is to use all but ______________ . ATP transfers one of its phosphate groups (becoming ADP) to a transfer protein. This protein changes its conformation so it can bring needed ions into the cell and get rid of unnecessary ions.
A) cellular energy
B) active transport
C) membrane protein
D) phospholipid channels

Answer 1

It is D Phospholipid Channels

Answer 2

its d phospholipid  channels i just took it on usatestprep