Bacterial spores are destroyed by_______________?
Correct answer: C. Autoclave
- A. Boiling at 100°C
- B. Disinfection by hypochlorite solution
- C. Autoclave
- D. Pasteurisation
Explanation
A properly operated autoclave destroys bacterial spores through saturated steam under pressure, typically at 121°C. Boiling, pasteurisation and ordinary hypochlorite disinfection may not reliably eliminate spores.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
Practise Infection Control and Sterilisation
38 free Infection Control and Sterilisation MCQs from Microbiology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Microbiology questions like this
Microbiology is on 6 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Infection Control and Sterilisation questions
Sterilisation is______________?
Rideal Walker test is used to determine the efficiency of the_____________?
The major antiseptic value of soap lies in its ability to_____________?
The minimum time required for the sterilization of surgical instruments by moist heat at 134°C is__________________?
Steam under pressure in used in ________ sterilization?
The most common pathogens responsible for nosocomial pneumonias in the ICU are______________?