MCQ
Endemic goitre is a state of:
- AIncreased thyroid function.
- BNormal thyroid function.
- CDecreased thyroid function.
- DModerate thyroid function.
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$R$ : In non-competitive inhibition, inhibitor and substrate bind at same sites on the enzyme.
$(i)$ Contractile vacuole takes part in osmoregulation and excretion.
$(ii)$ Food vacuole is formed by engulfing the food particles.
$(iii)$ The vacuole is bound by a double membrane called tonoplast.
$(iv)$ Vacuole can occupy upto $90$ percent of the volume of the cell.