Bacteria in the cattle rumen play a crucial role in digestion of

Question

Accepted Answer

C. {'text': 'Cellulose through methanogens and other symbiont microbes', 'label': 'C'}

1. Cattle food is rich in cellulose from plant material.
2. Rumen bacteria including methanogens break down cellulose that mammals themselves cannot digest.
3. This releases fatty acids and gases (CH₄, CO₂) that cattle can utilise.
4. Humans cannot digest cellulose because we lack such gut microbes and enzymes.
_Source: NCERT Class 12 Biology, Ch 8 "Microbes in Human Welfare", §8.4_

Answer

{'text': 'Only complete dietary proteins from ingested plant material', 'label': 'A'}

Answer

{'text': 'Only simple sugars pre-formed in the animal feed itself', 'label': 'B'}

Answer

{'text': 'Only dietary lipids into fatty acids and glycerol molecules', 'label': 'D'}