Statement I: | Fascicular vascular cambium, interfascicular cambium, and cork-cambium are examples of lateral meristems. |
Statement II: | These are responsible for producing secondary tissues. |
Assertion(A): | Apical meristems and intercalary meristems are primary meristems. |
Reason (R): | They appear early in life of a plant and contribute to the formation of the primary plant body. |
1. | Both (A) and (R) are True and (R) correctly explains (A). |
2. | Both (A) and (R) are True but (R) does not correctly explain (A) |
3. | (A) is True; (R) is False |
4. | Both (A) and (R) are False |
In the given diagram, the root apical meristem is represented by the letter:
1. A |
The meristem that helps grasses regenerate parts removed by the grazing herbivores is the:
1. | Shoot apical meristem | 2. | Root apical meristem |
3. | Intercalary meristem | 4. | Lateral meristem |
I: | is constituted by some cells ‘left behind’ from shoot apical meristem during the formation of leaves and elongation of stems. |
II: | is present in the axils of leaves and is capable of forming a branch or a flower. |
All the following are examples of secondary or lateral meristems except:
1. | Fascicular vascular cambium | 2. | Intercalary meristem |
3. | Interfascicular meristem | 4. | Cork cambium |
I: | Photosynthesis |
II: | Storage of food materials |
III: | Secretion and excretion |
Statement I: | Parenchyma cells are loosely packed and have large intercellular spaces. |
Statement II: | Collenchyma cells are thin-walled and primarily serve to transport nutrients. |
1. | Only Statement I is correct. |
2. | Only Statement II is correct. |
3. | Both Statement I and Statement II are correct. |
4. | Both Statement I and Statement II are incorrect |
I: | occurs in layers below the epidermis in most of the dicotyledonous plants. |
II: | consists of cells that are much thickened at the corners due to deposition of cellulose, hemicellulose, and pectin. |
III: | never contains chloroplasts. |
IV: | provides mechanical support to the growing parts of the plant such as the young stem and petiole of a leaf. |