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NEET MDS Question Bank
 

1  Microbiology

Dry heat sterilization of paper points without incineration is accomplished at
1. 160°C for 2hours
2. 120°C for l hour
3. 100°C for 2 hours
4. 200°C for 1 hour

 

2  Microbiology

Which of the following is an acidogenic genus found in deep dental caries, that often increases significantly in the saliva during periods of caries activity?
1.Lactobacillus
2.Candida
3. Actinomyces
4. Rothia

 

3  Microbiology

Two important factors for initiation of caries by oral streptococci are
1 production of glucosyl transferase and synthesis of insoluble dextran
2. production of acid and production or protease
3. production of collagenase and pro- duct ion of hyaluronidase
4. fermentation of mannitol and sorbitol and production of protease.

 

4  Microbiology

In concentrations usually applied for sterilization purposes, ethylene oxide is preferable to formaldehyde becuase it is
1. more readily polymerized to an active form
2. less toxic
3. less likely to form an explosive mixture with air
4. more penetrating

 

5  Microbiology

Which of the following is considered as a disadvantage in the application of dry heat as a sterilizing agent?
1. Requires excessive time
2. Does not destroy hepatitis viruses
3. Dulls instrument cutting edges
4. All of the above

NEET MDS Topics
  • Excretion
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  • ENDOCRINE
  • Condylar Fractures
  • Conditioning and Behavioral Responses
  • Krebs Cycle
  • The Lateral Wall of the Orbit
  • Classifications of epidemiologic research
  • Trigeminal Neuralgia
  • Clinical Signs and Their Significance

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