Question

Vacuole in a plant cell

• A. is membrane bound and contains storage proteins and lipids.
• B. is membrane bound and contains water and excretory substance.
• C. lacks membrane and contains air.
• D. lacks membrane and contains water and excretory substances.

Answer 1

The correct option is B

is membrane bound and contains water and excretory substance.

The correct option is B:

Explanation of the correct option:

1. Vacuoles in plant cells are associated with storage.
2. It maintains the turgidity of the cell by storing water in it.
3. It contains excretory products and sap as well.
4. It is surrounded by tonoplast, so it is a membrane-bound organelle.

Explanation of the incorrect option(s):

Option A:

Vacuoles do not store proteins and lipids.

Option C:

Vacuoles have a membrane named tonoplast.

Option D:

Vacuoles contain water and excretory substances but it has a membrane named tonoplast.

Final answer: Vacuole in a plant cell is membrane-bound and contains water and excretory substance.