In dicot root the vascular cambium is completely _________ in origin.
(1) Primary
(2) Secondary
(3) Tertiary
(4) Quaternary
Which one yields fibres?
1. Coconut
2. Oak
3. Teak
4. Sisso
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 |
In dicot leaf, stomata is more present on the
1. | adaxial surface |
2. | abaxial surface |
3. | equally on both surfaces |
4. | stomata is absent |
In dicot leaf , cuticle is present on the
1. | adaxial epidermis |
2. | abaxial epidermis |
3. | lateral epidermis |
4. | Both A and B |
The tissues present between the adaxial and abaxial epidermis are
1. | mesophyll |
2. | chlorophyll |
3. | vascular bundle |
4. | Both A and C |
Which of the following is true for palisade parenchyma?
1. adaxially placed
2. elongated cells
3. vertically and parallely placed
4. All of the above