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Nutrition in Humans and Plants
Quick questions on Absorption and assimilation explained: O-Level Biology
5short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is absorption in the small intestine?Show answer
Absorption is the movement of digested food molecules from the small intestine into the blood (and lymph). The small intestine is highly adapted for this:
What is assimilation?Show answer
Assimilation is the process by which absorbed food molecules are taken into the cells of the body and used to become part of the body or to release energy. In other words, absorption gets the molecules into the blood, and assimilation puts them to use in the cells.
What is q1?Show answer
Name the projections that line the small intestine. [1 mark]
What is q2?Show answer
State two features of a villus that aid absorption. [2 marks]
What is q3?Show answer
Define assimilation. [2 marks]
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