CAIE IGCSE Biology 16.3.1 Draw the Following Parts Questions

Learn to identify and draw the sepals, petals, stamens and carpels of an insect-pollinated flower.

Exam points

Identify and draw the sepals, petals, stamens (filament and anther), and carpels (stigma, style, ovary and ovules) of an insect-pollinated flower.

[Maximum number: 5]

(a)

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

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

[ 4 ]

process / event	letter from Fig. 6.1	name of the organ
meiosis to produce pollen grains	C	anther
pollination	D	stigma
development of seeds	E	ovary
protection of flower in the bud	A	sepal

(b)

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

[ 1 ]

(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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