Ruminant animals can digest cellulose in thei | vedclass

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(A) The correct answer is $A$. Humans cannot digest cellulose because they lack the specific bacteria known as methanogens in their digestive tract. T

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methanogens are absent in human gut

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(A) The correct answer is $A$. Humans cannot digest cellulose because they lack the specific bacteria known as methanogens in their digestive tract. These methanogens produce the enzyme cellulase,which is essential for the fermentation and breakdown of cellulose. Methanogens are anaerobic bacteria that produce large amounts of methane,along with $CO_2$ and $H_2$,during the digestion process. These bacteria are naturally present in the rumen of ruminant animals (like cattle),where they facilitate the breakdown of cellulose,thereby playing a crucial role in the nutrition of these animals.

Ruminant animals can digest cellulose in their food,whereas human beings are unable to do so. This is because

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