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What is the role of alcohol in disinfection?

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Question: What is the role of alcohol in disinfection?

Options:

  1. To kill spores
  2. To denature proteins and disrupt membranes
  3. To oxidize cellular components
  4. To inhibit nucleic acid synthesis

Correct Answer: To denature proteins and disrupt membranes

Solution: 

Alcohol acts as a disinfectant by denaturing proteins and disrupting cellular membranes, making it effective against many microorganisms.

What is the role of alcohol in disinfection?

Practice Questions

Q1
What is the role of alcohol in disinfection?
  1. To kill spores
  2. To denature proteins and disrupt membranes
  3. To oxidize cellular components
  4. To inhibit nucleic acid synthesis

Questions & Step-by-Step Solutions

What is the role of alcohol in disinfection?
Correct Answer: Alcohol is effective in disinfection.
  • Step 1: Understand that alcohol is a type of chemical used for cleaning and killing germs.
  • Step 2: Know that alcohol works by changing the structure of proteins in germs, which is called denaturing.
  • Step 3: Realize that alcohol also breaks down the protective outer layer of germs, known as the cellular membrane.
  • Step 4: Recognize that by doing these two things, alcohol can effectively kill or inactivate many types of germs, including bacteria and viruses.
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