Fertilisation in Flowering Plants

The video tutorial explains the structure and reproductive functions of flowers, focusing on the roles of stamens and carpels. It covers the pollination process, including self and cross-pollination, and the agents involved. The germination of pollen grains and the formation of pollen tubes are detailed, leading to fertilization. The concept of double fertilization is introduced, resulting in the formation of a zygote and endosperm. Finally, the development of seeds and fruits from fertilized ovules is discussed, highlighting the transformation of the ovary into fruit.

What are the male reproductive parts of a flower called?

• Ovules

• Carpels

• Petals

• Stamens

Which type of pollination occurs when pollen is transferred to a flower on the same plant?

• Wind pollination

• Insect pollination

• Cross-pollination

• Self-pollination

What is the role of the pollen tube in plant reproduction?

• To produce pollen grains

• To form the seed coat

• To transport male gametes to the ovule

• To attract pollinators

How does the pollen grain recognize the stigma of its own species?

• Through wind patterns

• By size and shape

• By chemical interaction

• Through visual cues

What is the process called when one male gamete fuses with the egg cell?

• Pollination

• Endosperm formation

• Syngamy

• Triple fusion

What is the result of double fertilization in flowering plants?

• Formation of two endosperms

• Formation of a zygote and endosperm

• Formation of two zygotes

• Formation of a single embryo

What does the ovary develop into after fertilization?

• Seed

• Embryo sac

• Fruit

• Pollen grain