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प्रश्न
Draw the diagram of a flower and label the four whorls. Write the names of gamete producing organs in the flower.
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उत्तर
The four whorls of a flower are
- Calyx consist of of sepals
- Corolla consist of petals
- Androecium is the male reproductive part, stamens which consist of anther and filament.
- Gynoecium is the female reproductive part, pistil which consist of stigma, style, ovary.
In flowers, gametes producing organs are:
- Anther (Part of androecium) - pollen grains contain male gametes.
- Ovary (Part of gynoecium) - ovule contain egg (female gamete).
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संबंधित प्रश्न
In the following diagram showing the structure of embryo of a dicot seed, what are the parts marked I, II and III sequentially?
Name the parts A, B and C shown in the following diagram and state one function of each.
Explain what you understand by sexual reproduction.
Sketch the reproductive parts of a flower.
How does the process of fertilisation take place in flowers?
Fill in the following blank with suitable word :
The term used to refer to the transfer of pollen from the stamen of one flower to the carpel of another flower of the same species is...........
Explain the terms 'self pollination'
How is the process of pollination different from fertilization?
Which of the following is the correct sequence of events of sexual reproduction in a flower?
(a) pollination, fertilisation, seed, embryo
(b) seed, embryo, fertilisation, pollination
(c) pollination, fertilisation, embryo, seed
(d) embryo, seed, pollination, fertilisation
Which of the following statements are true for flowers?
(i) Flowers are always bisexual.
(ii) They contain sexual reproductive organs.
(iii) They are produced in all groups of plants.
(iv) after fertilization they give rise to fruits.
You have to perform the experiment, "To identify the different parts of an embryo of a gram seed." Describe the procedure that you would follow.
Draw a diagram of the longitudinal section of a flower exhibiting germination of pollen on stigma and label (i) ovary, (ii) male germ-cell, (iii) female germ-cell and (iv) ovule on it.
Write the names of male and female reproductive parts of a flower.
Describe an activity to demonstrate phototropism.
Find an odd one out.
Accessory whorls : Calyx and corolla : : essential whorls : ______________
The ovule of an angiosperm is technically equivalent to ______
The seed that contains the future plant is called the ______
Name the reproductive parts of an angiosperm. Where are these parts located? Explain the structure of its male reproductive part.
Given below is a diagram of a germinating seed. Label the parts that:
- gives rise to future shoot.
- gives rise to future root system.
- stores food.
