Question

The structure that imparts turgidity and rigidity to the cell is

• A. vacuole
• B. ribosome
  
• C. cell wall
• D. cell membrane
  

Answer 1

The correct option is A

vacuole

The correct option is A.

Explanation of the correct option:

1. Vacuoles are sac-like structures bounded by a single membrane called tonoplast, and it occupies 90% of the plant cell.
2. Vacuoles contain a fluid that includes food, waste materials, inorganic salts, etc., which is called cell sap.
3. Many life-sustaining substances, like amino acids, sugars, various organic acids, and some proteins, are stored in vacuoles.
4. Due to the presence of cell sap in vacuoles, the cell gets turgidity and rigidity.

Explanation of the incorrect options:

Option B :

Ribosomes provide the site for protein synthesis and are called the ‘protein factories of the cell.

Option C :

1. The cell wall is the protective semi-transparent membrane surrounding the plasma membrane.
2. It provides rigidity, support, and mechanical strength to the tissues.

Option D :

1. Cell membranes are elastic, delicate, and flexible membranes made up of lipids and proteins.
2. It acts as a mechanical barrier and protects the cell from injury.

Final answer: The structure that imparts turgidity and rigidity to the cell is Vacuole.