Question

In which of the following organelle of Amoeba systole and diastole take place?

• A. Pseudopodia
• B. Contractile vacuole
• C. Plasmalemma
• D. Food vacuole

Answer 1

The correct option is B Contractile vacuole

• A contractile vacuole is an organelle in Amoeba that helps the cell to remove wastes and excess water. It is found primarily in freshwater protists and algae.
• The concentration of solutes inside a cell is greater than that outside the cell in fresh water hence, the cell constantly absorbs water through osmosis.
• This process goes on continuously. There are two states of a contractile vacuole in osmoregulation:

1) Diastole- During this state, many small vacuoles appear.

2) Systole- Disappearance of contractile vacuoles after bursting is called systole.

Systole and diastole perform the function of osmoregulation in Amoeba.

Thus the correct answer is option B.