Conjoint open vascular bundles are present in

1.	stem of dicots only
2.	stem of dicots and gymnosperms
3.	stem of monocots and gymnosperms
4.	stem of monocots only

The outermost layer of the root is

1. epidermis

2. endodermis

3. hypodermis

4. dermis

Root hairs arise from__________

Root hairs are ____________ and formed from __________zone of root.

Epidermis of root is also known as

1. epiblema

2. piliferous layer

3. Rhizodermis

4. All of the above 

Cortex consists of

The innermost layer of the cortex is called

Endodermis  comprises of  ____________layer of ____________shaped cells.

1. single, oval

2. single, barrel

3. multi, round

4. single, round

Casparian strips are present in

Casparian strips are barrel shaped cells in which tangential and radial walls are

impermeableto water because of