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.

Which one yields fibres?

Death of protoplasm is a pre-requisite for vital function like

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