As shown in Figure 6.15 in the textbook, the uptake of glucose into cells uses energy gained from primary active transport by the sodium-potassium pump.Which statement best describes the use of this energy? A) The concentration gradient of Na⁺drives the coupled transport of Na⁺ and glucose. B) Hydrolysis of ATP directly moves glucose against its concentration gradient. C) The diffusion of K⁺ into the cell establishes a concentration gradient for glucose to follow. D) The phosphorylation of the sodium-potassium pump allows glucose to diffuse into the cell. E) Antiporters move Na⁺ out of the cell and glucose molecules in.

Question

Quizplus · Accepted Answer

The energy gained from primary active transport by the sodium-potassium pump is used to create a concentration gradient of Na+ ions outside the cell and K+ ions inside the cell. This gradient is then used to drive the coupled transport of Na+ ions and glucose into the cell. Therefore, statement A is the best choice. The other statements do not accurately describe the use of energy gained from the sodium-potassium pump in the uptake of glucose.

As Shown in Figure 6