Zinc transport proteins:

a. export zinc to the lumen when zinc intake is high.
b. move zinc from the lumen to the mucosal cells when zinc intake is high.
c. stimulate metallothionine synthesis, regardless of zinc intake.
d. inhibit metallothionine synthesis, regardless of zinc intake


Ans: b. move zinc from the lumen to the mucosal cells when zinc intake is high.

Nutritional Science

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