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 dicot leaf vascular bundle are surrounded by _________which are mostly made up of thick walled_________

(1)bundle sheath, parenchyma

(2)bundle sheath, sclerenchyma

(3)bundle sheath, collenchyma

(4)spongy parenchyma

How many of the  followings are not present in the dicot leaf

Epidermis, hypodermis, endodermis, pericycle, pith, medullary rays

(1)6

(2)5

(3)4

(4)3

Monocot leaf is

(1)Isobilateral

(2)equifacial

(3)bifacial

(4)Both A and B

In monocot leaf, Mesophyll is differentiated into

(1) Spongy and palisade parenchyma

(2)only spongy parenchyma

(3)no differentiation of mesophyll

(4)only palisade parenchyma

Bulliform cells are

(1)small, empty, and colourless

(2)large, empty and colourless

(3)large and photosynthetic

(4) large and fluid filled and colourless

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

In onion and garlic, the leaves are

(1)cylindrical

(2)bifacial

(3) unifacial

(4) Both A and C