| 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 |