Question

A protoplast is a cell

• A. undergoing division
• B. without cell wall
• C. without plasma membrane
• D. without nucleus.

Hint:

A protoplast is a cell without a cell wall that is composed of cytoplasm, plasma membrane, and cell organelles.

Answer 1

The Correct Option is B

A protoplast is a cell without a cell wall that is composed of cytoplasm, plasma membrane, and cell organelles.

• The cell wall is removed by the action of enzymes.
• Cellulase enzymes digest cellulose present in plant cell walls.
• Pectinase enzymes break down the cells that hold pectin together. 
• Once, the cell wall is removed, the protoplast becomes spherical in shape.

Hence, option B) without cell wall is the correct answer.

Answer 2

Cell walls make the cells strong, protecting them from damage. The cell wall is removed by the action of enzymes in protoplasts. 

• A protoplast is a type of plant cell that lacks a cell wall, making it a naked cell. 
• It is usually obtained by removing the cell wall of a plant cell through various physical or chemical methods. 
• Protoplasts are often used in plant tissue culture and genetic engineering as they can easily take up foreign DNA.

So, the correct answer is (B): A protoplast is a cell without a cell wall.