Question

Vacuole is covered by a membrane called

• A. Tonoplast
• B. Plasmalemma
• C. Cell membrane
• D. Cell wall

Answer 1

The correct option is A Tonoplast

• A vacuole is covered by a membrane called tonoplast.
  
• Tonoplast (vacuolar membrane) refers to the cytoplasmic membrane surrounding the large vacuole of a plant cell.
  
• It separates the vacuolar contents from the cytoplasmic contents.
• It is a semi-permeable membrane which allows the movement of only certain molecules through them and also helps to maintain turgor pressure in the cell.
  
• So, the correct answer is 'Tonoplast'.