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प्रश्न
Observe the figure below. Write functions of the labelled parts.
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उत्तर
- Gynoecium (Carpel): It is an essential whorl. It is consists of stigma, style and ovary. It acts as a female reproductive part of the flower. It is responsible for the production of female gametes.
- Androecium (Stamen): It is an essential whorl. It is consists of anther and filament. It acts as a male reproductive part of the flower. It is responsible for the production of male gametes.
- Calyx and corolla: Calyx and corolla are accessory whorls. They are responsible for the protection of inner (essential) whorls.
- Pedicel: Pedicel is a small stalk which supports the flower.
APPEARS IN
संबंधित प्रश्न
Match the following:
| Column A | Column B |
| (i) Stigma | (a) Neuron |
| (ii) Pepsin | (b) Carpel |
| (iii) Dendrites | (c) Protein |
| (d) Stamen |
A student identified the various parts of an embryo of a gram seed and listed them as given below :
(I) Testa
(II) Plumule
(III) Radicle
(IV) Cotyledon
(V) Tegmen
Out of these the actual parts of the embryo are :
(A) I, II, III
(B) II, III, IV
(C) III, IV, V
(D) II, IV, V
Mention the changes a flower undergoes after fertilisation.
State the function of flowers in the flowering plants.
How is the process of pollination different from fertilization?
Where are the pollen grains produced?
What is the function of a flower?
What are the reproductive organs in a flower?
Where is the female gamete formed in flowering plants?
Explain the terms 'cross-pollination'?
What is seed?
What changes take place in the flower after fertilisation which lead to the formation of seeds and fruit?
Fill in the blanks:
A stamen consists of ______ and ________.
Mention the function of Flower.
Mention the function of Stigma.
Write one main difference between asexual and sexual mode of reproduction. Which species is likely to have comparatively better chances of survival – the one reproducing asexually or the one reproducing sexually? Give reason to justify your answer.
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.
List any two differences between pollination and fertilization.
Identify the odd. Stigma, Style, Pollen, Ovary.
Fill in the blanks and rewrite the completed statements:
Lymph flows in _______________ direction.
A student is observing the temporary mount of a leaf peel under a microscope. Draw a labelled diagram of the structure of stomata as seen under the microscope
Answer the following question.
List two agents of pollination?
Bisexual : Hibiscus : : Unisexual : ___________
Distinguish between self-pollination and cross-pollination.
The male reproductive part of a flower is ______.
Identify the parts A, B, C, and D?
Identify the female gametophyte in angiosperms.
Conidia are formed endogenously while zoospores are formed endogenously.
The seed that contains the future plant is called the ______
Which out of the following processes does not lead to the formation of clones.
In a bisexual flower inspite of the young stamens being removed artificially, the flower produces fruit. Provide a suitable explanation for the above situation.
Draw the diagram of a flower and label the four whorls. Write the names of gamete producing organs in the flower.
Sketch and label the essential and accessory whorls of flower.
What is the function of calyx?
Sexual maturation of reproductive tissues and organs are necessary link for reproduction. Elucidate.
Consider the following three flowers namely X, Y and Z. Which flower(s) would develop into a fruit?
| Flower X | Flower Y | Flower Z |
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