What Do Contractile Vacuoles in Paramecium Assist With

Question

What do contractile vacuoles in Paramecium assist with?
A)osmoregulation
B)selective uptake
C)endocytosis
D)digestion
E)water storage

Accepted Answer

Contractile vacuoles in Paramecium assist with osmoregulation by pumping excess water out of the cell to maintain a proper balance of water and solutes.