Biology
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 |
Related Questions
Assertion (A): The most attractive, colourful part of a flower is calyx.
Reason (R): Calyx is the whorl of sepals which protects the young flower bud. Calyx, when green, also performs photosynthesis.
- 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.
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.
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.
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) …………… .