In Ground tissue system, parenchymatous cells are usually present in
1.cortex
2.pericycle
3. pith and medullary rays
4. All of the above
Ground tissue system is present in
1.root
2.stem
3. leaf
4. All of these
In Dicots, secondary xylem and phloem tissues are formed because of
1.open vascular bundle
2. closed vascular bundle
3. Both A and B
4. semi closed vascular bundle
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
In conjoint type vascular bundle xylem and phloem are present on _________ radii and & phloem is located on the __________side of the xylem.
1.same and outer
2. same and inner
3. different and inner
4. different and outer
The outermost layer of the root is
1.epidermis
2. endodermis
3. hypodermis
4. dermis
Root hairs arise from__________
1.epidermis
2. endodermis
3. pericycle
4. cortex
Root hairs are ____________ and formed from __________zone of root.
1.unicellular, maturation
2.multicellular, elongation
3.multicellular, maturation
4. unicellular, elongation
Cortex consists of
1. parenchymal cells with intracellular spaces
2.parenchymal cells with intercellular spaces
3.collenchymal cells with intracellular spaces
4.collenchymal cells with intercellular spaces
The innermost layer of the cortex is called
1. pericycle
2. endodermis
3. vascular bundle
4. epidermis