1. Assertion- Finger-like projections called villi line the interior wall of the small intestine. (1)
Reason- Most of the absorption of digested food takes place in small intestine.
(a)Both the assertion and the reason are correct and the reason is the correct explanation of the
Assertion.
b) The assertion and the reason are correct but reason is not the correct explanation of assertion.
c) Assertion is true but reason is false.
d) Assertion is false but reason is true.
Answers
Explanation:
both are true and reason is correct explanation of assertion
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Answer:
(a) Both the assertion and the reason are correct and the reason is the correct explanation of the assertion!
Explanation:
➜ The small intestine is larger than the large intestine and is estimated to be 7.5 meters long. But we are not 7.5 meters tall, are we? The small intestine is coiled to a great extent.
➜ Finger-like outgrowths are present in thousands in the inner walls of the small intestine. They serve the purpose of increasing the surface area for food absorption.
➜ Within these outgrowths, called villi, there are numerous thin blood vessels that also help absorb the digested food material. The absorbed material is transported to the bloodstream and then, through blood vessels, carried to every cell.