Top 1000+ Solved Microbiology MCQ Questions Answer
Q. The main product of glycolysis underaerobic conditions is
a. Pyruvate
b. Lactate
c. None of these
d. Both a and b
Q. Example of anaerobic medium
a. Wilson blair medium
b. Mac conkey broth
c. Robertson’s cooked meat medium
d. EMB agar
Q. 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 night
Q. 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
Q. The following organisms have been proposed as sources of single cell protein
a. Bacteria
b. Yeasts
c. Algae
d. All the three
Q. Nitrites are oxidized to nitrates by amicroorganism
a. Nitrosomona
b. Nitrosococcus
c. Nitrobacter
d. Azatobacter
Q. In gram positive and gram negativebacteria the electron transport contains
a. Naphthquinone
b. Plastoquinone
c. Ubiquinone
d. Both a and b
Q. Growth in a closed system, affected by nutrient limitation and waste product accumulation is called
a. Batch culturing
b. Ascus
c. Fruiting body
d. Sporangiosphore
Q. Cells are active and synthesizing new protoplasm. This stage of growth is called
a. Lag phase
b. Stationary phase
c. Log phase
d. All of these
Q. Which one of the following tissues can metabolize glucose, fatty acids and ketone bodies for ATP production?
a. Liver
b. Muscle
c. Brain
d. R.B.C