Cuticle:
1. is a covering, both outside and inside of the epidermis
2. is well developed in roots
3. helps in prevention of water loss
4. is a proteinaceous layer
In a dicot stem, the pericycle is present on the inner side of the endodermis and:
1. | above the phloem, in form of semi-lunar patches of sclerenchyma |
2. | above the xylem, in form of semi-lunar patches of sclerenchyma |
3. | above the phloem, in form of semi-lunar patches of collenchyma |
4. | above the xylem, in form of semi-lunar patches of collenchyma |
In a dicot root, initiation of lateral roots and vascular cambium during the secondary growth takes place in the cells of:
1. | Outer cortex | 2. | Inner cortex |
3. | Endodermis | 4. | Pericycle |
In a dicot stem the term 'starch sheath' is used for:
1. | Epidermis with guard cells | 2. | Hypodermis |
3. | Endodermis | 4. | Pericycle |
During the formation of primary plant body, dermal tissue, ground tissue and vascular tissue are produced by:
1. Primary meristems
2. Secondary meristems
3. Both primary and secondary meristems
4. Neither primary nor secondary meristems
All the following statements regarding the anatomy of a typical dicotyledonous root are correct except:
1. | Many cells of the epiblema protrude in the form of unicellular root hairs. |
2. | The innermost layer of the cortex is called as the endodermis. |
3. | Pericycle is made up of collenchymatous cells. |
4. | Parenchymatous conjunctive tissue lies between the xylem and phloem. |
The type of vascular bundles shown in the given figure would most likely be seen in:
1. | Dicotyledonous stem | 2. | Roots |
3. | Monocotyledonous stem | 4. | Leaves |
The vascular bundles in a dicot stem are:
1. conjoint, open with endarch protoxylem
2. conjoint, closed with endarch protoxylem
3. conjoint, open with exarch protoxylem
4. conjoint, closed with exarch protoxylem
What would be true for A and B shown in the given diagram?
1. | A shows open stomatal aperture while B shows closed stomatal aperture |
2. | A shows closed stomatal aperture while B shows open stomatal aperture |
3. | A shows the stomata in grasses |
4. | B shows the stomata in grasses |
The incorrect statement regarding epidermal tissue system in angiosperms would be:
1. It comprises of epidermal cells and stomata but not the appendages such as trichomes
2. It is the outermost layer of the primary plant body forming a continuous layer
3. It is usually single layered
4. Cells are parenchymatous with a large vacuole