Question

Diagram-based Question
1. Given here is the diagrammatic sketch of the
vertical cross-section of a flower
(a) Label the parts 1 to 6.
(b) Name the reproductive whoris of a flower
Project Ideas
1. (a) Work in a group. Collect 10 transparent plast
water, soil, washed sand and sticky labels.
(b) Prepare and label the transparent plastic pots
Pots la and 16
Empty pots
Pots 2a and 25
Put a very small amo
Pots 3a and 36
Keep both​

Answer 1

Answer:

a) The given diagram shows generating pollen.

b) 1-Exine

2-Intine

3-Pollen Tube

4-Vegetative nucleus

5-Generative nucleus

c) The stage is found when the pollen reaches a stigma of a flower and the chemical reaction stimulate the tube elongation and subsequent fertilisation.

d) The vegetative nucleus synthesizes the pollen tube.

e) The Generative nucleus bifurcates into two male gametes out of which one fuses with the polar nuclei in triple fusion to form endosperm and the other male nuclei fuse with the egg cell to form the zygote and subsequent embryo.

Explanation:

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