Question

How many eggs are present in an embryo sac? How many embryo sacs are present in an ovule? How many ovules are present in an ovary? How many ovaries are present in a typical flower?

Answer 1

Hint: As we know flowers are the reproductive part of a plant. They are not only involved in reproduction, but also a source of food for other living organisms. A complete flower consists of sepals, petals, stamens and pistils. A complete flower consists of two different parts which are the vegetative part and reproductive part.

Complete answer:
The reproductive parts of a flower consist of stamen, anther, filaments, pistil, stigma, style and ovary.
Ovary is the ductless reproductive gland that holds a lot of ovules. It is the part of the plant where the seed formation occurs. The embryo sac or which is also called as the female gametophyte is an oval structure which is situated in the ovule of flowering plants.

- There is only one egg in an embryo sac.
- Number of embryo sacs present in an ovule is one.
- Numbe of ovules in an ovary varies from plant to plant.
- Number of ovaries present in a typical flower depends on the number of carpels. For example monocarpellary gynoecium has one carpel and one ovary whereas, bicarpellary has two carpels and two ovaries. Multicarpellary possess several carpels and several ovaries.

The diagram below shows the parts of a flower

Note: Stamen is considered to be the male reproductive part of a flower, while pistil is the female reproductive part of a flower. The stamen is surrounded by anther that produces pollen grains and filament. After the process of fertilization, the ovary of the flower develops into a fruit containing a seed.