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NEET MDS Quiz - Practice Test
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Microbiology - 3 Questions

1
Microbiology
The most pronounced effect on the oral microflora of a reduction in rate of salivary flow is a
1. significant increase in number of oral bacteria
2. shift towards a more acidogenic microflora
3 significant decrease in number of oral bacteria
4 shift towards a more aerobic micro flora

📝 Explanation:

The most pronounced effect on the oral microflora of a reduction in rate of salivary flow is a shift towards a more acidogenic microflora

2
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

📝 Explanation:

In concentrations usually applied for sterilization purposes, ethylene oxide is preferable to formaldehyde becuase it is more penetrating

3
Microbiology
Most bacterial endotoxins are composed of
1. pure carbohydrates
2. mucoprotein complexes
3. pure lipids
4. lipoprotein-polysaccharide complexes

📝 Explanation:

Most bacterial endotoxins are composed of lipoprotein-polysaccharide complexes

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