1. The main product of glycolysis under aerobic
conditions is
a. Pyruvate
b. Lactate
c. None of these d.
Both a and b
2. The protein moiety of an enzyme is known as
a. Holo enzyme b.
Apo enzyme
c. Co enzyme d.
Enzyme
3. Yeast extract is an excellent source of
a. A Vitamin b. Proteins
c. B Vitamin d.
Carbohydrates
4. Example of anaerobic medium
a. Wilson blair medium
b. Mac conkey broth
c. Robertson’s cooked meat medium
d. EMB agar
5. Biological Oxygen Demand (BOD) is a measure of:
a. Industrial wastes poured into water bodies
b. Extent to which water is polluted with organic compounds
c. Amount of carbon monoxide inseparably combined with
haemoglobin
d. Amount of oxygen needed by green plants during nigh
6. An example of competitive inhibition of an enzyme is
the inhibition of
a. Succinic dehydrogenase by malonic acid
b. Cytochrome oxidase by cyanide
c. Hexokinase by glucose-6-phosphate
d. Carbonic anhydrase by carbon dioxide
7. The following organisms have been proposed as sources
of single cell protein
a. Bacteria b.
Yeasts
c. Algae d.
All the three
8. Nitrites are oxidized to nitrates by a microorganism
a. Nitrosomonas b.
Nitrosococcus
c. Nitrobacter d.
Azatobacter
9. The major constituents in agar are:
a. Fats b.
Aminoacids
c. Polysaccharides d.
Polypeptides
ANSWERS
1. a
2. b 3. c 4. c 5. a 6. a 7. d 8. c 9. c
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