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CAIE IGCSE Biology 16.3.1 Insect-Pollinated Flower Structure

Practise identifying, drawing and labelling the reproductive and protective parts of an insect-pollinated flower.

Syllabus
2026–2028
Course
Biology 0610

Exam points

  • identify filament and anther as the stamen structures involved in pollen production
  • identify stigma, style, ovary and ovules as parts of the carpel
  • draw clear label lines to petals, sepals and reproductive structures in a flower section

16.3.1—Draw the following parts question 1

[Maximum number: 5]

Question (a)

(a)

Fig. 6.1 is a half-flower drawing of pride of Barbados, Caesalpinia pulcherrima.

Fig. 6.1

Fig. 6.1

Complete Table 6.1 by stating the letter from Fig. 6.1 that indicates the organ where each function occurs and the name of the organ.

Table 6.1

Table 6.1

[ 4 ]

Question (b)

(b)

Pollen grains grow tubes, which contain haploid male gamete nuclei.

[ 1 ]

Question (i)

(i)

One of these male gamete nuclei fuses with the female gamete.

State the part of the flower that contains the female gamete.

[ 1 ]
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