Related Questions

The amount of oxygen consumed by the aerobic bacterias which cause the aerobic biological decomposition of sewage, is known
A Bio-Chemical Oxygen Demand (B.O.D.)
B Dissolved Oxygen (D.O.)
C Chemical Oxygen Demand (C.O.D.)
D None of these
Pathogens (or pathogenic bacterias) in water may cause
A Typhoid
B Cholera
C Dysentery
D All the above
The aerobic exercise
A Require energy supply from break down of A TP
B Causes increase in muscle bulk
C Helps in development of endurance
D Causes increase in cardiac reserve during exercise by many fold
E Helps in development of muscle strength
Nonsporing aerobic bacteria are
A Nocardia spp.
B Lactobacillus spp.
C Actinomyces spp.
D Bacteroides fragilis
E Prevotolla spp.
What is aerobic respiration?
A Partial oxidation of glucose
B Incomplete oxidation of glucose
C Complete oxidation of organic substances
D Complete oxidation of only glucose
Which among the following difference between aerobic and anaerobic respiration is INCORRECT?
A Aerobic respiration takes place in presence of oxygen \u2013 Anaerobic respiration takes place in the absence of oxygen \
B In Aerobic respiration pyruvate is broken down into ethanol and carbon dioxide \u2013 In Anaerobic respiration pyruvate is broken down into carbon dioxide\and water
C In Aerobic respiration more energy is released \u2013 In Anaerobic respiration less energy is released \
D Aerobic respiration takes place in mitochondria\u2013 Anaerobic respiration takes place in yeast \
Bacterial aerobic oxidation of polluted water in biological oxidation ponds is done to purify it. Presence of bacteria helps in
A Coagulation and flocculation of colloids
B Oxidation of carbonaceous matter to CO2
C Nitrification or oxidation of ammonia derived from breakdown of nitrogeneous organic matter to the nitrite and eventually to the nitrate
D All of the above
The main result of aerobic respiration is the
A Production of lactic acid as an end product
B Production of ATP from the breakdown of glucose
C Conversion of radiant energy into chemical energy
D Storage of energy in a polysaccharide
To maintain aerobic biological activity, the moisture content of the compost mass should be about
A 45 %
B 50 %
C 55 %
D 60 %
Aerobic activity is maximum
A In freshly produced sewage
B At sewer pipes
C In sewer treatment plants
D None of these

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