draw neat label diagram of sexual reproduction of plant s and explain the male and female parts
Answers
Answer:
The flower is the reproductive organ in sexually reproducing plants.
ii. Stamen is the male organ and carpel is the female organ of the flower.
iii. Flowers having both stamens and carpels are called bisexual flowers.
iv. Stamens produce male gametes called pollen grains, and carpels produce female gametes called ovules or egg cells inside ovaries.
v. Fertilization of the egg cell by the pollen grain takes place in the ovules.
vi. The fertilized egg cell later develops into an embryo and the entire ovule gets converted into a seed.
vii. The seed germinates under favorable conditions to give rise to a new plant.
Explanation:
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Answer:
Sexual reproduction in flower is as follows:
i. The flower is the reproductive organ in sexually reproducing plants.
ii. Stamen is the male organ and carpel is the female organ of the flower.
iii. Flowers having both stamens and carpels are called bisexual flowers.
iv. Stamens produce male gametes called pollen grains, and carpels produce female gametes called ovules or egg cells inside ovaries.
v. Fertilization of the egg cell by the pollen grain takes place in the ovules.
vi. The fertilized egg cell later develops into an embryo and the entire ovule gets converted into a seed.
vii. The seed germinates under favorable conditions to give rise to a new plant.
Male reproductive part (stamen):
This is the male reproductive organ and is also known as Androecium. It consists of two parts namely: anther and filaments.
- The anther is a yellowish, sac-like structure, involved in producing and storing the pollens.
- The filament is a slender, threadlike object, which functions by supporting the anther.
Female reproductive part (pistil):
This is the innermost part and the female reproductive organ of a flower which comprises three parts -stigma, style and ovary. This is collectively known as the pistil.
- Stigma: It is the topmost part or receptive tip of carpels in the gynoecium of a flower.
- Style: It is the long tube-like slender stalk that connects stigma and the ovary.
- Ovary: It is the ductless reproductive gland that holds a lot of ovules. It is the part of the plant where the seed formation takes place
