Question

If Na⁺ levels were increased in the extracellular fluid, rate of glucose movement would

		increase.
		decrease.
		stay the same.

Answer 1

If Na+ levels were increased in the extracellular fluid, rate of glucose movement would increase.

The above case is an example of secondary active transport. The glucose -Na+ transporter ( present apical surface)symporter is a symporter that allow both molecules in to the cell in the same time. So, if Na+ levels were high in extracellular Matrix, then the glucose movement rate would increase using symporter. In the other hand, we know that in secondary active transport, both two salutes move opposite direction or same direction in the same time via antiporter or symporter.

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