When xylem and phloem are situated at the same radius of vascular bundle, then they are called _________ type of vascular bundle and are found in _________.

1. Radial, roots
2. Radial, stem and leaves
3. Conjoint, root
4. Conjoint, stems and leaves

Phloem located only on the outer side of xylem is a characteristic feature of ________ vascular bundles.

1. Conjoint
2. Radial
3. Diagonal
4. Spherical

In TS of Dicotyledonous root the innermost layer of the cortex is called _________.

1. Pericycle
2. Metaxylem
3. Endodermis
4. Pith

The walls of the endodermal cells have deposition of water impermeable, waxy material suberin in the form of __________.

1. Protoxylem
2. Metaxylem
3. Casparian strip
4. Cork cambium

In TS of dicotyledonous root next to endodermis lies a few layers of thick walled parenchymatous cells referred to as _________.

1. Pericycle
2. Metacycle
3. Procycle
4. Pith

Initiation of lateral roots and vascular cambium during secondary growth take place in ___________.

1. Pith
2. Epidermis
3. Protoxylem
4. Pericycle

In TS of Dicotyledonous root the parenchymatous cells which lies between the xylem and phloem are called _________.

1. Connective tissue
2. Conjuctive tissue
3. Cortex
4. Cambium

In TS of dicot root all tissue on the inner side of the endodermis such as Pericycle, vascular bundles and pith constitute the ________.

1. Medulla
2. Metaxylem
3. Pith
4. Stele

Monocotyledonous root do not undergo any ________.

1. Cell division
2. Secondary growth
3. Differentiation
4. Tertiary growth

In TS of dicotyledonous stem the cells arranged in multiple layers between epidermis and Pericycle constitute the ___________.

1. Cortex
2. Pith
3. Pericycle apparatus
4. Medullary rays