What happens during the cotransport of glucose and sodium ions?
A) The transport of glucose powers the transport of sodium.
B) ATP causes a conformational change in the carrier protein.
C) Both D and E
D) Glucose molecules are transported against their concentration gradient.
E) Sodium ions are transported down their concentration gradient.

Question

Quizplus · Accepted Answer

Both D and E are correct. In cotransport, glucose is transported against its concentration gradient (D), while sodium ions move down their concentration gradient (E), facilitating the transport of glucose into the cell. This process does not directly involve ATP causing a conformational change in the carrier protein, which is a characteristic of active transport mechanisms.

What Happens During the Cotransport of Glucose and Sodium Ions