Why are the roles of mouth and stomach different in human digestion?
Answer and explanation
Correct answer: The mouth starts starch digestion and the stomach helps protein digestion
Different digestive organs provide different enzymes and chemical conditions. In the mouth, salivary amylase begins the digestion of starch in a nearly neutral medium. In the stomach, hydrochloric acid creates an acidic environment and activates pepsin, which begins protein digestion. Therefore option A correctly matches the two roles. The other options confuse digestion with excretion, respiration, circulation, or absorption.
Frequently asked questions
What is the correct answer to this question?
The mouth starts starch digestion and the stomach helps protein digestion
Why is this the correct answer?
Different digestive organs provide different enzymes and chemical conditions. In the mouth, salivary amylase begins the digestion of starch in a nearly neutral medium. In the stomach, hydrochloric acid creates an acidic environment and activates pepsin, which begins protein digestion. Therefore option A correctly matches the two roles. The other options confuse digestion with excretion, respiration, circulation, or absorption.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Life Processes.
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