Biology
Given below is the generalized structure of a bisexual flower showing its various parts. Match the structures marked (a) to (e) with their correct functions:
Example: (f)-6: Bears all the floral whorls.
Flower
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Answer
| Structure of a flower | Functions |
|---|---|
| (a) Anther | 3. Produces pollen grains. |
| (b) Petal | 1. Attracts insects for pollination. |
| (c) Sepal | 2. Protects the inner whorls of the flower. |
| (d) Stigma | 5. Landing place for pollen grains. |
| (e) Ovary | 4. Develops into the fruit. |
| (f) Receptacle | 6. Bears all the floral whorls. |
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Related Questions
Assertion (A): Calyx and corolla are considered as non-essential (or accessory) parts of a flower because they do not participate in the process of reproduction at all.
Reason (R): Calyx and corolla are not useless. They protect the reproductive parts of the flower. Corolla attracts insects for pollination which is the first step of reproduction.
- A is True and R is False.
- A is False and R is True.
- Both A and R are True.
- Both A and R are False.
Match the parts in column A with the flowers or parts of flower in column B.
Column A Column B Polyadelphous Polypetalous Pollen grains Calyx, corolla Free petals Nectar Non-essential Bombax Sweet fragrant fluid Pollen sac Given alongside is the structure of the female reproductive part of a flower. Read the information given alongside and fill in the blanks :
Gynoecium is the innermost whorl of a flower which is made up of carpels. Its main function is production of female gametes that develop into seeds after the process of fertilization.
The terminal knob-like part of the pistil is (a) …………… which is covered with hairs or with glandular papillae. (b) …………… is the tubular slender stalk which connects the uppermost part to the lowest part of the pistil. Ovary is the swollen basal portion composed of one or many (c) …………… fused together. Ovary contains one or more rounded bodies, the (d) …………… which are attached to the wall of the ovary with (e) …………… .
Name
- Four whorls of the flower
- Two types of unisexual flowers
- Two main parts of a Stamen
- Three main parts of a Pistil
- Three types of stamens on the basis of their cohesion.