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प्रश्न
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उत्तर
The non-essential or accessory parts of flowers are the calyx and corolla since they do not directly participate in the process of sexual reproduction leading to the development of the seed.
1) Sepals of the calyx are green, leaf-like, and protect the inner whorls of the flower in the bud stage. They are also involved in producing food by photosynthesis.
2) Petals of the corolla are usually brightly coloured to attract insects for pollination; they also protect the inner whorls.
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संबंधित प्रश्न
Match the parts in Column A with the flowers or parts of the flower in Column B.
|
Column A |
Column B |
|
(a) Polyadelphous |
(i) Polypetalous |
|
(b) Pollen grains |
(ii) Calyx, corolla |
|
(c) Free petals |
(iii) Nectar |
|
(d) Non-essential |
(iv) Bombax |
|
(e) Sweet fragrant fluid |
(v) Pollen sac |
Explain the following term:
Pistillate flower
Explain the following term:
Bisexual flower
Match the columns :
| Column A | Column B |
| (a) Radicle | (i) Shoot |
| (b) Plumule | (ii) Store food material |
| (c) Cotyledon | (iii) Root |
| (d) Testa | (iv) Absorb water needed for germination |
| (e) Micropyle | (v) Protection of seed |
Write in detail the structure of a typical flower studied by you with the help of a labelled diagram.
What is the significance of flowers in the plant?
How many types of flowers are there?
Explain the function of Calyx.
How many whorls are present in a typical flower?
Give one example of the following:
Bisexual flower
