I: | The primary roots and its branches constitute the tap root system, as seen in the mustard plant. |
II: | Fibrous root system is seen in the wheat plant. |
III: | Adventitious roots are seen in Monstera and the banyan tree |
I: | Stem tendrils are seen in in gourds and grapevines. |
II: | Axillary buds get modified into thorns in Citrus. |
III: | Stems are modified into flattened structures in Opuntia. |
I: | A is seen in Calotropis. |
II: | B is seen in Pea. |
Assertion (A): | Pneumatophores are critical for the survival of certain mangrove species, including Rhizophora. |
Reason (R): | Mangrove plants live in unique habitat, which is characterized by waterlogged and often anoxic soil conditions and pneumatophores help in respiration under such conditions. |
1. | Both (A) and (R) are True and (R) correctly explains (A). |
2. | Both (A) and (R) are True and (R) does not correctly explain (A). |
3. | (A) is True; (R) is False |
4. | Both (A) and (R) are False |
1. | Protection of the embryo |
2. | Facilitation of water and oxygen entry during germination |
3. | Allowing the pollen tube to emerge out of the embryo sac |
4. | Induction of dormancy in the embryo |
1. | Prop roots | 2. | Tuberous roots |
3. | Pneumatophores | 4. | Moniliform roots |