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

1. Reticulate venation

2. Parallel venation

3. Branched venation

4. Radial venation

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

In grasses leaves are exposed when bulliform cells becomes­­­­_________ and leaves curl inwards when they are _________

(1)flaccid ,turgid

(2)plasmolysed, turgid

(3)turgid, flaccid

(4)Both B and A

Sclerenchymatous fibres are

1. thick walled, elongated and pointed cells

2. contains simple and bordered pits

3. smallest  cells in plant body

4. All of these