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Question

Teichoic acid is present in which component of bacteria?


A

Flagella

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B

Cell wall

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C

Outer membrane

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D

Plasma membrane

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Solution

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.


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