Question

Teichoic acid is present in which component of bacteria?

• A. Flagella
• B. Cell wall
• C. Outer membrane
• D. Plasma membrane

Answer 1

The correct option is B

Cell wall

The correct option is B

Explanation of the correct option:

1. Teichoic acid is a type of bacterial copolymer made up of glycerol phosphate and carbohydrates linked with each other by a phosphodiester bond.
2. It is present in gram-positive bacteria.
3. It is the component present in the cell wall of the bacterial cell.
4. These structures provide flexibility to the bacteria.

Explanation of the incorrect options:

Option A:

1. Flagella are used for the movement by the bacteria.
2. It can be present in both gram-positive and gram-negative bacteria.

Option C:
The outer membrane contains peptidoglycan which gives strength to the bacteria.
Option D:
The plasma membrane is made up of phospholipids and proteins.

Final answer: Teichoic acid is present in the cell walls of bacteria.