When Zinc Intake Is High What Happens to the Expression

question 109

Multiple Choice

When zinc intake is high what happens to the expression of zinc transport proteins and metallothionein?

• A)decreased expression of transporters that move zinc from the mucosal cell into the lumen and decreased expression of metallothionein,reducing the amount of zinc that moves from the mucosal cell into the blood
• B)increased expression of transporters that move zinc from the lumen into the mucosal cells and increased expression of metallothionein,reducing the amount of zinc that moves from the mucosal cell into the blood.
• C)Decreased expression of transporters that move zinc from the mucosal cell into the lumen and increased expression of metallothionein,increaseing the amount of zinc that moves from the mucosal cell into the blood.
• D)increased expression of transporters that move zinc from the mucosal cell into the lumen and decreased expression of metallothionein,reducing the amount of zinc that moves from the mucosal cell into the blood.

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