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Edexcel IGCSE Biology 2.32 Small Intestine Adaptations for Absorption Questions

Trace villus adaptations—surface area, thin walls and blood/lacteal supply—and connect villus damage to reduced absorption, growth and energy.

Syllabus
First assessment 2019
Course
Biology 4BI1

Exam points

  • Use villus structure to explain how large surface area, thin walls, capillaries and lacteals support nutrient absorption.
  • Explain how damaged villi reduce nutrient absorption and can slow growth or cause tiredness.

Edexcel IGCSE Biology 2.32 Small Intestine Adaptations for Absorption Questions question 1

[Maximum number: 1]

The diagram shows the digestive system of a dog with some structures labelled. The digestive system of the dog is similar to that of a human.

Figure for Question Edexcel IGCSE Biology 2.32 Small Intestine Adaptations for Absorption Questions question 1 — Edexcel IGCSE Biology

Which structure contains villi?

A

Q

B

R

C

S

D

V

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