SarkariPYQ

SSC CPO 2024 PYQ — Question 89

SSC CPO - 28 June 2024 - Shift 3 • General Awareness • Q89

Back to paper

Which bacteria have a thick cell wall with several layers of peptidoglycan and teichoic acid?

Show answer & explanation

Correct answer: B

Explanation

The correct answer is option 2 i.e. Staphylococcus aureus.

  1. Staphylococcus aureus is an example of a Gram-positive bacterium that has a thick cell wall composed of multiple layers of peptidoglycan and teichoic acid.
  2. The peptidoglycan provides rigidity and structural integrity, while teichoic acids play a role in cell wall maintenance, regulation of enzymes, and defense against environmental stress.
  3. Gram-positive bacteria like Staphylococcus aureus retain the crystal violet stain in the Gram staining process, resulting in a purple color under a microscope.
  4. This thick cell wall makes them resistant to physical damage.