Microbiology - Physical and Chemical Agents

Exercise : Physical and Chemical Agents - Section 1
  • Physical and Chemical Agents - Section 1
1.
Which of the following articles can be sterilized in an autoclave?
Gloves
Culture media
Dressing material
All of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.

2.
Which of the following disinfectants act by disrupting microbial membranes?
Cationic detergents
Halogens
Heavy metals
Aldehydes
Answer: Option
Explanation:
No answer description is available. Let's discuss.

3.
Which of the following is best to sterilize heat labile solutions?
Dry heat
Autoclave
Membrane filtration
Pasteurization
Answer: Option
Explanation:
No answer description is available. Let's discuss.

4.
The time required to kill 90% of the microorganisms in a sample at a specific temperature is the
decimal reduction time
thermal death point
F value
D value
Answer: Option
Explanation:
No answer description is available. Let's discuss.

5.
Which of the following is best used for long term storage of microbial samples when carried out properly?
Storage in a freezer at -10°C
Storage in a freezer at ultra low temperatures (-70°C)
Storage in a refrigerator on an agar slant
Storage on a petri plate at room temperature
Answer: Option
Explanation:
No answer description is available. Let's discuss.