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NEET MDS Quiz - Practice Test
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Microbiology - 3 Questions

1
Microbiology
The destruction of microorganisms on living tissues, as long as there is contact between the tissues and the antimicrobial agent, denotes
1. sterilization
2. antisepsis
3. sanitization
4. none of the above

📝 Explanation:

The destruction of microorganisms on living tissues, as long as there is contact between the tissues and the antimicrobial agent, denotes antisepsis (option 2). Antisepsis refers to the application of antimicrobial agents to living tissues to reduce the possibility of infection, sepsis, or putrefaction.

  1. Sterilization:

    • This is the process of completely eliminating all forms of microbial life, including bacteria, viruses, fungi, and spores, from an object or surface. Sterilization is typically achieved through methods such as autoclaving (steam under pressure), dry heat, chemical sterilants, or radiation. Sterilization is used for medical instruments, laboratory equipment, and other items that must be free of all microorganisms.

  2. Antisepsis:

    • Antisepsis refers to the application of antimicrobial agents to living tissues to reduce the risk of infection, sepsis, or putrefaction. Antiseptics are used on skin and mucous membranes to prevent infection during surgical procedures, wound care, and other medical interventions. Common antiseptics include alcohol, iodine solutions, and chlorhexidine.

  3. Sanitization:

    • Sanitization is the process of reducing the number of microorganisms on surfaces or objects to a level considered safe by public health standards. This does not necessarily eliminate all microorganisms but reduces them to a level that minimizes the risk of infection or disease. Sanitization is commonly used in food service, public restrooms, and other environments where hygiene is important.

2
Microbiology

The minimum and maximum temperature for normal metabolic activity microorganisms that live on or within the human body is
1 50 C to 300 C
2 200 C to 450 C
3. 300 C to 400 C
4. 15 C to 600 C

📝 Explanation:

The minimum and maximum temperature for normal metabolic activity microorganisms that live on or within the human body is 20 C to 45C

3
Microbiology
The first person becoming sick in an epidemic is called -
1. Primary case
2. Source of infection
3. Reservoir of infection
4. Index case

📝 Explanation:

The first recognized case in an epidemic outbreak is termed as the index case. Although both the index case and primary case appear to be the same yet they differ slightly. The term primary case refers to the person who first brings a disease into a group of people.

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