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∘C for the microorganisms to metabolise organic waste.
Measuring Biochemical Oxygen Demand (BOD) is a method used for
NEET UG 2012 — Zoology Microbes in Human Welfare
2012mcqmedium
Measuring Biochemical Oxygen Demand (BOD) is a method used for
Official previous-year question
Held on 30 Apr 2012 · Verified 9 Jul 2026.
Options
- A
estimating the amount of organic matter in sewage water
- B
working out the efficiency of oil driven automobile engines
- C
measuring the activity of Saccharomyces cerevisae in producing curd on a commercial scale
- D
working out the efficiency of RBCs about their capacity to carry oxygen
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