Question

Paramecium, shown here, possess ___________ that help counteract the effects of osmosis.

A)
oral grooves
B)
ciliated pellicle
C)
contractile vacuoles
D)
micro and macro nuclei

Answer 1

The answer is C) contractile vacuoles

Contractile vacuole regulates the quantity of the water inside the cell. Osmoregulation in Paramecium is carried out by this organelle. There can be one or many vacuoles, depending on species. It works that way that it pumps the water out. Water inside the cell is usually absorbed by osmosis from Paramecium's surrounding.