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NEET 2012
Exam
NEET
Year
2012
Subject
Zoology
Chapter
Microbes in Human Welfare

NEET 2012 · Zoology · Microbes in Human Welfare

Measuring Biochemical Oxygen Demand (BOD) is a method used for

Measuring Biochemical Oxygen Demand (BOD) is a method used for

Options

  1. Aestimating the amount of organic matter in sewage water
  2. Bworking out the efficiency of oil driven automobile engines
  3. Cmeasuring the activity of Saccharomyces cerevisae in producing curd on a commercial scale
  4. Dworking out the efficiency of RBCs about their capacity to carry oxygen

Correct answer

A. estimating the amount of organic matter in sewage water

Step-by-step solution

Decomposition of organic matter by microbes requires oxygen. The degree of impurity of water due to organic matter is measured in terms of BOD (Biochemical Oxygen Demand) or BOD is the oxygen in milligrams required for five days in one litre of water at 20∘C20^{\circ} \mathrm{C} for the microorganisms to metabolise organic waste.
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