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CAIE IGCSE Biology 16.3.7 Structural Adaptations Questions

Compare how insect-pollinated and wind-pollinated flowers use different structures for pollen transfer.

Syllabus
2026–2028
Course
Biology 0610

Exam points

  • use large coloured petals, nectar and internal reproductive parts as insect-pollination evidence
  • use exposed anthers and large feathery stigmas as wind-pollination evidence
  • link abundant light pollen to wind dispersal and sticky or spiky pollen to insect transport

CAIE IGCSE Biology 16.3.7 Structural Adaptations Questions question 1

[Maximum number: 2]

Fig. 2.1 is a photograph of a spider plant, Chlorophytum comosum. Spider plants can reproduce by producing an identical plantlet, which grows away from the single parent plant.

Fig. 2.1

Fig. 2.1

Question (a)

(a)

Fig. 2.2 shows pollen that has been released from the flowers of a hazel tree, Corylus avellana. These flowers are wind-pollinated.

Fig. 2.2

Fig. 2.2

[ 2 ]

Question (i)

(i)

Explain why a hazel tree has to produce very large amounts of pollen.

[ 1 ]

Question (ii)

(ii)

Describe how a stigma from a wind-pollinated plant is adapted for pollination.

[ 1 ]
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