Nutrition and Digestion — Important Questions
Telangana Open School (TOSS) · Class 12 · Biology
49 important questions from Nutrition and Digestion for Telangana Open School (TOSS) Class 12 Biology, with answers. Written for the board exams 2027.
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Important Questions from Nutrition and Digestion
What is the function of hydrochloric acid in the stomach?
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Activates pepsinogen into pepsin
HCl activates the inactive enzyme pepsinogen into active pepsin, which digests proteins. It also kills bacteria and maintains acidic pH.
Which of the following is a vestigial organ in humans?
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Appendix
The vermiform appendix is a vestigial organ in humans, meaning it has lost its original function through evolution.
Which step of nutrition involves the utilization of digested food by body cells?
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Assimilation
Assimilation is the process where digested nutrients are used by body cells for growth, repair, and energy.
What is the pH of gastric juice?
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pH 1–2
Gastric juice is highly acidic due to hydrochloric acid secreted by oxyntic cells, maintaining a pH of 1–2.
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