Q. No.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
1. Primary meristems
2. Secondary meristems
3. Both primary and secondary meristems
4. Neither primary nor secondary meristems
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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.
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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 |
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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
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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
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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
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All the following are true for trichomes except:
1. they are usually unicellular
2. they may be branched
3. they may be secretory
4. they help in prevention of water loss due to transpiration
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Mesophyll cells present in the ground tissue of leaves are:
1. chloroplasts lacking thin walled cells
2. chloroplasts containing thick walled cells
3. chloroplasts containing thin walled cells
4. chloroplasts lacking thick walled cells
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Open vascular bundles:
I. have cambium present between xylem and phloem
II. possess the ability to form secondary tissues
III. are rare in dicotyledonous stems
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
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In conjoint type of vascular bundles:
| I: | xylem and phloem are jointly situated on the same radius of vascular bundles. |
| II: | xylem is usually located on the outer side of the phloem. |
| 1. Only I is correct | 2. Only II is correct |
| 3. Both are correct | 4. Both are incorrect |
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