| 1. | Dumb-bell shaped | 2. | Kidney shaped |
| 3. | Rectangular | 4. | Barrel-shaped |
| 1. | Epidermis | 2. | Pericycle |
| 3. | Cortex | 4. | Endodermis |
Which of the following is made up of dead cells?
1. Collenchyma
2. Phellem
3. Phloem
4. Xylem parenchyma
Cortex is the region found between
| 1. | Epidermis and stele |
| 2. | Pericycle and endodermis |
| 3. | Endodermis and pith |
| 4. | Endodermis and vascular bundle |
The balloon-shaped structures called tyloses
| 1. | Original in the lumen of vessels |
| 2. | characterise the sapwood |
| 3. | are exetentions of xylem parenchyma cells into vessels |
| 4. | are linked to the ascent of sap through xylem vessels |
Specialised epidermal cells surrounding the guard cells are called ?
| 1. | subsidiary cells | 2. | bulliform cells |
| 3. | lenticels | 4. | complementary cells |
| 1. | subsidiary cells | 2. | bulliform cells |
| 3. | lenticels | 4. | complementary cells |