Page 1 - Assignment-Microbes in Human Welfare

Assignment

A – Multiple Choice Questions (MCQs)

1. Which of these processes does not give off CO2?
a. Lactate fermentation
b. Aerobic respiration
c. Alcoholic fermentation
d. None of the above.
2. High biological oxygen demand in a water body means ________
a. Water is not polluted
b. Water is polluted
c. Waterbody contains lots of lifeforms
d. None of the above
3. The guts of various ruminants contain _________
a. Acidophiles
b. Halophiles
c. Methanogens
d. All of the above
4. Which of the following microbes are used for the commercial production of citric
acid?
a. Xanthomonas citri
b. Asparagine
c. Asparagus
d. Aspergillus
5. Saccharomyces cerevisiae is used primarily for
a. Baking
b. Bleaching
c. Biofuel
d. None of the above
6. Acinetobacter baumannii is a _________
a. Decomposing bacteria
b. Pathogenic bacteria
c. Nitrogen-fixing bacteria
d. None of the above
7. Ethanol can be produced using __________
a. Saccharomyces cerevisiae
b. Escherichia coli
c. Pseudomonas syringae
d. None of the above
8. Bacillus thuringiensis is used for
a. Fermentation of beer
b. Biopesticide
c. Antibiotic
d. None of the above