Active Transport Makes It Possible for Cells to

Active transport makes it possible for cells to

A) take up nutrients from the environment against concentrations gradients.
B) transport out secretory products and waste material against concentration gradients.
C) maintain nonequilibrium intracellular concentrations of ions such as Na⁺,K⁺,Ca2⁺,and H⁺.
D) establish an electrical potential across the membrane.
E) All of the above are correct.