How does food move down the food pipe even when it may not be liquid?
Answer and explanation
Correct answer: By wave-like muscular movement
The governing concept is peristalsis. The wall of the oesophagus contains circular and longitudinal muscles that contract and relax in a coordinated wave. This wave pushes a bolus of solid, semi-solid, or liquid food toward the stomach, so movement does not depend only on gravity. Therefore option A is correct. Blood cells and stomata have no role in transporting food through the human food pipe.
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What is the correct answer to this question?
By wave-like muscular movement
Why is this the correct answer?
The governing concept is peristalsis. The wall of the oesophagus contains circular and longitudinal muscles that contract and relax in a coordinated wave. This wave pushes a bolus of solid, semi-solid, or liquid food toward the stomach, so movement does not depend only on gravity. Therefore option A is correct. Blood cells and stomata have no role in transporting food through the human food pipe.
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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