Question

Identify each part in a flowering plant and write whether it is haploid (n) or diploid (2n).
(a) Ovary
(b) Anther
(c) Egg
(d) Pollen
(e) Male gamete
(f) Zygote

Answer 1

Part (a): Ovary:

1. Ovary is a part of the gynoecium or female part of the flower containing the ovule.
   
2. After fertilization, the mature ovary develops into fruit.
   
3. It is a diploid (2n) structure.

Part (b): Anther:

1. Anther is a part of the androecium or male part of the flower.
   
2. It contains the pollen grains that possess the male gametes.
   
3. It is a diploid structure (2n).

Part (c): Egg:

1. The female gamete is also called the egg cell.
   
2. This female gamete is present in the ovule present inside the ovary.
   
3. It is a haploid structure as it is a gamete (n).

Part (d): Pollen:

1. Pollens contain the male gamete present in flowers.
   
2. Pollen grains are present inside the anther of the androecium.
   
3. It acts as a diploid structure (2n) protecting the male gametes.
   

Part (e): Male gamete:

1. Male gametes are the structure present inside the pollen grain produced through meiosis.
   
2. It is carried to the female part of the flower during pollination.
   
3. It is a haploid (n) structure since it is a gamete.

Part (f): Zygote:

1. Zygote is formed by the fusion of male and female gamete.
   
2. It is a diploid structure (2n) that is formed in the ovule.
3. After maturation, the ovule develops into seed.