Microbiology Mock Test 7

10%

Question 1 of 10

1. Which of the following antibiotic have a sparing effect on the B12 in the diet?

Anthramycin

Streptomycin

Chloramphenicol

Tetracycline

Question 1 of 10

Question 2 of 10

2. Protozoa and other minute animal life are known as ____________________

phytoplankton

zooplankton

plankton

mycoplankton

Question 2 of 10

Question 3 of 10

3. The moisture contained in clouds and precipitated as snow,hail,rain etc constitutes _________________

Subterranean water

Atmospheric water

Surface water

Groundwater

Question 3 of 10

Question 4 of 10

4. The international unit of penicillin is defined by how much amount of International Standard?

0.262 µg

0.5 mg

1 mg

0.5988 µg

Question 4 of 10

Question 5 of 10

5. Pigs respond dramatically to the addition of which of the following antibiotics to their diet?

terramycin

oxytetracycline

penicillin

aureomycin

Question 5 of 10

Question 6 of 10

6. The degradation of complex molecules in soil by fungi for utilization by bacteria is an example of which type of association?

Commensalism

Antagonism

Neutralism

Mutualism

Question 6 of 10

Question 7 of 10

7. Ampicillin is a bactericidal antibiotic.

True

False

Question 7 of 10

Question 8 of 10

8. Polymyxins inhibits the growth of the microbes by carrying out which of the following actions?

damage to cytoplasmic membrane

inhibition of specific enzyme systems

inhibition of nucleic acid and protein synthesis

inhibition of cell-wall synthesis

Question 8 of 10

Question 9 of 10

9. Antibiotic produced by Streptomyces rimosus is _______________

tetracycline

chlortetracycline

oxytetracycline

doxycycline

Question 9 of 10

Question 10 of 10

10. Nystatin is produced from the strain _____________________

Streptomyces noursei

Streptomyces aureofaciens

Streptomyces fradiae

Streptomyces kanamyceticus

Question 10 of 10