7.5. Absorption
A subsection of Biology, 0610, through 7. Human nutrition
Listing 10 of 58 questions
Describe how food is moved along the small intestine. The small intestine is lined by many villi. shows a longitudinal section of a villus. shows a cross-section of the same villus at V – W. The diagrams are not drawn to the same scale. Q P W S V R cell T microvilli Name structures P, Q, and R. P Q R The blood that flows from S enters a vein. Name the vein that transports blood away from the small intestine. Cell T is an example of the cells that form the surface of the villi. Explain why there are many microvilli on cell T. Some of the cells on the surface of the villi secrete mucus for protection. Suggest what the villi need to be protected against.
0610_s14_qp_32
THEORY
2014
Paper 3, Variant 2
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Questions Discovered
58