Multiple choice

A gram negative bacterium is less sensitive to antibiotics because its

  1. peptidoglycan is thick

  2. peptidoglycan lacks teichoic acid

  3. peptidoglycan is thin

  4. peptidoglycan lacks lipid A

  5. petidoglycan contains alcohol

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The peptidoglycan of a gram negative bacterium consists of fewer number of layers and it is thin. In addition to this, the outer lipopolysaccharide layer is not permeable to antibiotics like penicillin. Therefore, a typical gram negative bacterium is less sensitive to antibiotics.