BIOLOGY IN HUMAN WELFARE
MICROBES IN HUMAN WELFARE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Production of methane
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Regulation of digestion
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Breakdown of cellulose
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Synthesis of polysaccharides
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Detailed explanation-1: -Methanobacterium is found in the rumen (a part of the stomach) of cattle. A lot of cellulosic material is also available in the rumen. In rumen, these bacteria help in the breakdown of cellulose and play an important role in nutrition of cattle.
Detailed explanation-2: -Cattle can digest cellulose because they have cellulose-digesting bacteria called ruminococcus in the rumen.
Detailed explanation-3: -Ruminal bacteria have much higher metabolic activity than larger microorganisms (protozoa and fungi), and are responsible for most of the digestive process in ruminants [1]. The microbial environment in the rumen-reticulum is quite complex and dynamic due to several factors including mainly the type of diet.
Detailed explanation-4: -Aerobic bacteria break down cellulose by releasing free cellulolytic enzymes which act on the biomass [34].