Q. No.Phellogen, phellem and phelloderm are collectively known as
1. Phellogram
2. Periderm
3. Cork
4. Phalanges
1. Phellogram
2. Periderm
3. Cork
4. Phalanges
Bark that is formed early in season is called __________ bark.
1. Hard
2. Soft
3. Turbid
4. Lenticels
Bark formed towards the end of the season is called ________ bark.
1. Soft
2. Hard
3. Turbid
4. Rigid
The exchange of gases between the outer atmosphere and internal tissue of stem is through ___________.
1. Lenticels
2. Legume
3. Epidermis
4. Cambium ring
In dicot root the vascular cambium is completely _________ in origin.
(1) Primary
(2) Secondary
(3) Tertiary
(4) Quaternary
Death of protoplasm is a pre-requisite for vital function like
(1) Transport of sap
(2) Transport of food
(3) Absorption of water
(4) Gaseous exchange
Dicotyledonous leaf is also known as
| 1. | Dorsiventral leaf | 2. | Bi-facial leaf |
| 3. | Both A and B | 4. | Isobilateral leaf |
The main parts of the lamina of the dorsiventaral leaf are
| 1. | epidermis |
| 2. | mesophyll tissues |
| 3. | vascular system |
| 4. | All of the above |
The upper and lower surface of the dicots leaf are known as
| 1. | adaxial and abaxial respectively |
| 2. | abaxial and adaxial respectively |
| 3. | Both A and B |
| 4. | anterior and posterior respectively |
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