Which of the following sterilization/disinfection agents works by disrupting the cell membrane?
Correct Answer: Phenols
Description: Option 1 They are bactericidal or bacteriostatic and some are fungicidal also. They act by denaturing proteins and disrupting cell membranes. Option 2 Mode of action of Halogens: All preparations yield hypochlorous acid (HClO) which causes oxidative destruction of vegetative bacteria and fungi, but not spores. Option 3 Mode of action of Heavy metals: Heavy metals combine with bacterial cell proteins, often with their sulphydryl groups, and inactivate them. They may also precipitate cell proteins. Option 4 Ethylene oxide sterilizer is one of the widely used gaseous chemical sterilants in present days. It has high penetration power, has both microbicidal and sporicidal activity; acts by combining with cell proteins.
Category:
Microbiology
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now