| 1. | Presence of xylem fibres |
| 2. | Presence of tracheids |
| 3. | Absence of vessels |
| 4. | Absence of xylem parenchyma |
| a. | Cylindrical tube like structure |
| b. | Absent in gymnosperms |
| Column-I (Tissue) |
Column-II (Function) |
||
| A. | Collenchyma | 1. | Transport of food |
| B. | Sclerenchyma | 2. | Transport of water |
| C. | Xylem | 3. | Permanent mechanical support |
| D. | Phloem | 4. | Mechanical support in young parts |
Similar to how Sieve Tube elements are associated with companion cells, sieve cells are associated with:
1. Albuminous cell
2. Lenticel
3. Bulliform cell
4. Guard cell
| Column I | Column II | ||
| a. | Vessels | (i) | Obliterated central lumen |
| b. | Xylem fibres | (ii) | Elongated cells with tapering ends |
| c. | Xylem parenchyma | (iii) | Absent in gymnosperms |
| d. | Tracheids | (iv) | Thin walled living cells |
When protoxylem lies towards the centre (pith) and the metaxylem lies towards the periphery of the organ, the primary xylem is called
| 1. | Endarch; present in stem |
| 2. | Endarch; present in roots |
| 3. | Exarch; present in stem |
| 4. | Exarch; present in roots |
Angiosperms have
| 1. | vessels absent |
| 2. | tracheids only |
| 3. | vessels present |
| 4. | sieve tubes absent |
Elongated or tube-like cells with thick and lignified walls and tapering ends is
1. Tracheids
2. Vessel
3. Sieve tube
4. Collenchyma
| Assertion (A): | In angiosperms, transport of food and water is more efficient than gymnosperms and pteridophytes |
| Reason (R): | In angiosperms longitudinally arranged sieve tube elements and vessels with perforated end walls are present |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |