CAIE IGCSE Biology 7.5.4 Structure of a villus

Practise labelling villus structures and explaining how thin epithelium, microvilli, capillaries and lacteals make absorption efficient.

Exam points

label capillaries, lacteals, epithelium and microvilli on villus diagrams
link thin epithelium, microvilli and blood supply to rapid nutrient absorption
distinguish capillary uptake of glucose or amino acids from lacteal uptake of fats

[Maximum number: 1]

Fig. 6.1 is a diagram of a villus.

Fig. 6.1

Draw labels and label lines on Fig. 6.1 to identify a capillary and a lacteal.

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