All of the following statements about Penicillin Resistance is true, EXCEPT:

A. b- Lactamase production is the most common mechanism of resistance

B. Alteration in target PBPs is an impoant resistance mechanism in Gram negative bacteria

C. Alteration in permeability / penetration of antibiotic causes resistance only in Gram negative bacteria

D. b-Lactamase production causes resistance in both Gram positive and Gram negative bacteria

Correct Answer: Alteration in target PBPs is an impoant resistance mechanism in Gram negative bacteria

Description: Alteration in target Penicillin Binding Proteins (PBPs) is an impoant resistance mechanism in gram positive bacteria and not gram negative. It is very unusual to encounter Gram Negative bacteria that have acquired Resistance to b -Lactam Antibiotics due to an alteration in target (Penicillin Binding Proteins). Ref: Antimicrobial Resistance : A Crisis in Health Care By Jungkind, Page 17; Jawetz, Melnick and Adelberg's Medical microbiology, 23rd Edition, Page 175.

Category: Microbiology

Share:

← Previous MCQ

Next MCQ →

Get More

Subject Mock Tests

Practice with over 200,000 questions from various medical subjects and improve your knowledge.

Attempt a mock test now

Mock Exam

Take an exam with 100 random questions selected from all subjects to test your knowledge.

Coming Soon

Get More

Subject Mock Tests

Try practicing mock tests with over 200,000 questions from various medical subjects.

Attempt a mock test now

Mock Exam

Attempt an exam of 100 questions randomly chosen from all subjects.

Coming Soon