MCQ practice · SSC Biology Board questions · Chapter 5: Food, Nutrition and Digestion
Whose digestion begins in the mouth cavity?
Think it through first, then pick an option.
- a fish
- b egg
- c butter
- d bread (roti)
Answer and explanation
Correct answer: d bread (roti)
Roti is mainly starch, and starch digestion starts in the mouth. Fish and egg are protein and butter is fat, which do not change in the mouth.
Why the other options are wrong
- a fish: “fish” does not fit here. Roti is mainly starch, and starch digestion starts in the mouth. Fish and egg are protein and butter is fat, which do not change in the mouth.
- b egg: “egg” does not fit here. Roti is mainly starch, and starch digestion starts in the mouth. Fish and egg are protein and butter is fat, which do not change in the mouth.
- c butter: “butter” does not fit here. Roti is mainly starch, and starch digestion starts in the mouth. Fish and egg are protein and butter is fat, which do not change in the mouth.
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