Determine which of these statements best summarizes the cellular regulation of concentration gradients.
A. Selective permeability of the cell membranes results in equal amounts of substances inside and outside the cell.
B. Enzymes are used in the cell to build molecules on one side of membranes to establish concentration gradients.
C. Membrane phospholipids and proteins regulate transport functions to establish concentration gradients or equilibria.
D. Passive and active transport both function with transport proteins to move materials across the cell membranes.
E. The cellular regulations require large amounts of energy to maintain equilibrium of materials.
C. Membrane phospholipids and proteins regulate transport functions to establish concentration gradients or equilibria.
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