In Dicots, Secondary growth is possible because of

1. cambium

2. xylem and Phloem

3. Vascular bundle

4. Both 2. and 3.

Radial vascular bundle arrangement is most common in

1. roots

2. stem, and roots

3. leaves

4. All of the above

In radial vascular bundle xylem and phloem are present on _____________radii and in

an ___________manner.

1. different and consecutive

2. same and alternate

3. different and alternate

4. same and consecutive

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 are ____________ and formed from __________zone of root.

1. unicellular, maturation

2. multicellular, elongation

3. multicellular, maturation

4. unicellular, elongation

The innermost layer of the cortex is called

1. pericycle

2. endodermis

3. vascular bundle

4. epidermis

Casparian strips are present in

1. endodermis

2. epidermis

3. pericycle

4. cortex

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

impermeableto water because of

1. suberin deposition

2. cellulose deposition

3. cutin deposition

4. casparin deposition

Lateral roots originate from

1. Pericycle

2. Epidermis

3. cortex

4. hypodermi