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BIOLOGY

JAMB 2003 - Question 20

Biology 2003 JAMB Past Questions - Question 20: The part of the mammalian digestive system where absorption of nutrients takes place is the

Choose the most appropriate option for the gap .

The part of the mammalian digestive system where absorption of nutrients takes place is the

A: ileum

B: colon

C: oesophagus

D: duodenum

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Correct Answer

Explanation

This is because the ileum has four characteristic features namely a) It is long and coiled and so provides large surface area for absorption of digested food to occur.b) It has villic) Each villus has thin epithelial lining for easy diffusion to occurred) Each villus has blood vessels which transport digested food from the ileum to the liver through the hepatic portal vein.