Vascular bundles are surrounded by a layer of thick walled ________.

1. Bundle sheath cells

2. Cuticle

3. Casparian strip

4. Waxy cell

In monocot leaf

The similar size of vascular bundle in monocot leaf is due to

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 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

Midrib and veins of the represent

(1)vascular bundle

(2) cortex          

(3)palisade parenchyma

(4)spongy parenchyma

The size of the vascular bundles are dependent on the size of the

1. veins

2. air cavities

3. chloroplast

4. All of the above

Which one is true for dicot leaf

1. veins thickness vary

2. reticulate venation is present

3. all vascular bundles are similar in size

4. Both 1 and 2