- 1(current)
Q. No.Identify the correct statement:
| 1. | Monocotyledonous plants generally have taproot systems with one or more primary and secondary roots. |
| 2. | The root hair zone develops in the region of elongation. |
| 3. | Roots that develop from a stem, leaf, or other plant part are called adventitious roots. |
| 4. | Apical meristem is found in the region of maturation. |
Subtopic: Morphology of Roots | Modification of Roots |
86%
From NCERT
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Roots are modified in some plants for storing reserve food materials. These modified roots usually are swollen and assume different forms. Which of the following such roots does not have any definite shape?
1. radish
2. beet
3. carrot
4. sweet potato
1. radish
2. beet
3. carrot
4. sweet potato
Subtopic: Modification of Roots |
79%
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Roots are modified to provide mechanical support as seen in:
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II, and III are correct
| I: | prop roots of banyan |
| II: | stilt roots of maize |
| III: | betel/black where nodes and internodes bear roots that help in climbing |
2. Only I and III are correct
3. Only II and III are correct
4. I, II, and III are correct
Subtopic: Modification of Roots | Modifications of Stem |
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Identify the correctly matched pair:
1. Sugarcane - Prop roots
2. Banyan - Stilt roots
3. Maize - Stilt roots
4. Mangrove - Prop roots
1. Sugarcane - Prop roots
2. Banyan - Stilt roots
3. Maize - Stilt roots
4. Mangrove - Prop roots
Subtopic: Modification of Roots |
83%
From NCERT
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| 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 |
Subtopic: Modification of Roots |
92%
From NCERT
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In swampy areas like the Sunderbans in West Bengal, plants bear special kind of roots called
| 1. | Prop roots | 2. | Tuberous roots |
| 3. | Pneumatophores | 4. | Moniliform roots |
Subtopic: Modification of Roots |
93%
From NCERT
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Q. No.
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