Microbiology Mock Test 2

10%

Question 1 of 10

1. Which of the following is a direct measurement of growth?

Determination of Dry weight of cells

Measurement of a specific chemical change produced on a constituent of the medium

Determination of nitrogen content

Turbidimetric methods

Question 1 of 10

Question 2 of 10

2. The Reactive Oxygen Species(ROS) produced by some bacteria are degraded by which of the following enzymes?

Lyase

Peroxidase

Catalase

Superoxide dismutase, Catalase and Peroxidase

Question 2 of 10

Question 3 of 10

3. Which of the following is an indirect method for measuring bacterial growth?

Cell mass

Cell count

Cell activity

Both Cell mass and Cell activity

Question 3 of 10

Question 4 of 10

4. Which of the following bacterial species divides by fragmentation?

Bacillus subtilis

Streptococcus faecalis

Nocardia sp.

Rhodopseudomonas acidophila

Question 4 of 10

Question 5 of 10

5. Which of the following method is used for enumeration of bacteria in vaccines and cultures?

Membrane filter

Dry weight determination

Plate count

Microscopic Count

Question 5 of 10

Question 6 of 10

6. How many ATP molecules are formed for per molecule of FADH₂ reoxidized?

Question 6 of 10

Question 7 of 10

7. Colony formation can be observed in liquid media broth.

True

False

Question 7 of 10

Question 8 of 10

8. Which of the following is the relationship between optical density and cell mass?

inversely proportional

not related

exponentially proportional

linearly proportional

Question 8 of 10

Question 9 of 10

9. Which device is used to pick a single bacterial cell from a mixed culture?

microprobe

micromanipulator

micropipette

microscope

Question 9 of 10

Question 10 of 10

10. Enrichment media allows the growth of a large number of varied bacterial species.

True

False

Question 10 of 10