Question

Gram negative bacteria are resistant to penicillin because..

• A. Penicillin causes gene mutation, some of which are beneficial
• B. Because of lipid bilayer as outer most layer
• C. The hospital environment inhibits competition among bacteria
• D. Penicillin triggers the synthesis of resistant proteins

Answer 1

The correct option is B

Because of lipid bilayer as outer most layer

Antibiotics kill or inhibit the growth of susceptible bacteria which are having outermost layer as carbohydrate. If the bacteria having lipid bilayer as outermost layer (gram negative bacteria), those could be considered as resistant to penicillin.