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Nutrition in Animals — Science STD 7 — Question

Gujarat BoardEnglish MediumSTD 7ScienceNutrition in Animals1 Mark
MCQ
Humans cannot digest cellulose like cattle do because:
  • A
    They have a smaller stomach.
  • ✓
    They do not have cellulose$-$digesting bacteria in their stomach.
  • C
    They do not consume cellulose.
  • D
    They have less digesting capacity than ruminants.
✓

Answer

Correct option: B.
They do not have cellulose$-$digesting bacteria in their stomach.
Food is stored in the plants as cellulose. Cellulase is an enzyme synthesized by bacteria in stomach of ruminant which is used to digest cellulose. Humans do not have cellulase and hence they cannot digest cellulose.

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