
Draw an L.S of a pistil showing pollen tube entering the embryo sac in angiosperms and label any six parts other than stigma, style and ovary.

Important Questions on Sexual Reproduction in Flowering Plants

Why does endosperm development precede embryo development in angiosperm seeds? State the role of endosperm in mature albuminous seeds.


A flower of tomato plant following the process of sexual reproduction produces 240 viable seeds. What is the minimum number of pollen grains that must have been involved in the pollination of its pistil?

A flower of tomato plant following the process of sexual reproduction produces 240 viable seeds. What would have been the minimum number of ovules present in the ovary?

A flower of tomato plant following the process of sexual reproduction produces 240 viable seeds. How many megaspore mother cells were involved?

A flower of tomato plant following the process of sexual reproduction produces 240 viable seeds. How many male gametes were involved in this case?

Explain the events after pollination leading to the formation of a seed in angiosperms.
