Microbiology Mock Test 7

10%

Question 1 of 10

1. Benzylpenicillin is the chemical name for which of the following penicillin?

Penicillin G

Penicillin F

Phenethicilin

Penicillin V

Question 1 of 10

Question 2 of 10

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

Anthramycin

Streptomycin

Tetracycline

Chloramphenicol

Question 2 of 10

Question 3 of 10

3. Which of the following genus of bacteria is not found in fresh waters?

Flavobacterium

Aeromonas

Vibrio

Pseudomonas

Question 3 of 10

Question 4 of 10

4. The association which involves the exchange of nutrients between two species is referred to as ______________

antagonism

commensalism

syntrophism

mutualism

Question 4 of 10

Question 5 of 10

5. Purple and green sulfur bacteria use ___________________ as the electron donor to reduce carbon dioxide.

Organic acids

S^2-

SO₄^2-

H²S

Question 5 of 10

Question 6 of 10

6. The surface waters are susceptible to contamination with microorganisms from _______________

atmospheric water and the surface runoff

the air

the surface runoff

precipitation

Question 6 of 10

Question 7 of 10

7. Which among the following are the most important agents for carbon dioxide fixation?

bacteria

algae

protozoa

fungi

Question 7 of 10

Question 8 of 10

8. Fungi produces which of the following inhibitory toxic product?

fatty acids

methane

sulphides

cyanide

Question 8 of 10

Question 9 of 10

9. Which of the following has its antiviral action attributed to the interference of protein synthesis?

Acycloguanosine

Amantadine

Interferons

5’-iododeoxyuridine

Question 9 of 10

Question 10 of 10

10. Which of the following are not the features of component II of nitrogenase enzyme complex?

component II is nitrogenase reductase

component II is known as the MoFe protein

not active without component I

contains sulfur

Question 10 of 10