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Q. No.Identify the incorrect matching with respect to anatomy of dicot and monocot leaves?
Character
Dicot[Dorsiventral]
Monocot [Isobilateral]
1.
Presence of stomata
More on adaxial epidermis
More on abaxial epidermis
2.
Mesophyll
Differentiated into palisade and spongy parenchyma
Not differentiated into palisade and spongy parenchyma
3.
Venation
Mostly reticulate
Mostly parallel
4.
Size of vascular bundle
Dependent on the size of veins
Near similar size except in main veins
Subtopic: Monocot Leaf |
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The parallel venation in monocot leaves is reflected in the:
| 1. | wide variations in size of vascular bundles in the main veins |
| 2. | wide variations in size of vascular bundles except in the main veins |
| 3. | near similar size of vascular bundles in the main veins |
| 4. | near similar size of vascular bundles except in the main veins |
Subtopic: Monocot Leaf |
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The following T.S. shows the structure of a:
| 1. | Monocot stem | 2. | Dicot stem |
| 3. | Monocot root | 4. | Dicot root |
Subtopic: Anatomy of Root |
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The following TS shows the structure of a:
| 1. | Monocot stem | 2. | Dicot stem |
| 3. | Monocot root | 4. | Dicot root |
Subtopic: Dicot Stem |
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Axillary bud:
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
| I: | is constituted by some cells ‘left behind’ from shoot apical meristem during the formation of leaves and elongation of stems. |
| II: | is present in the axils of leaves and is capable of forming a branch or a flower. |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Meristematic Tissue:Classification (OLD NCERT) |
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A diagram of the transverse section of a monocot leaf is given below with certain parts indicated as letters of the alphabet. Select the option which incorrectly matches the alphabet with the part it represents:
| 1. | A - Adaxial epidermis | 2. | B - Phloem |
| 3. | C - Mesophyll | 4. | D - Abaxial epidermis |
Subtopic: Monocot Leaf |
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What given anatomical feature is not correct for a dicot stem?
| 1. | Hypodermis | Sclerenchymatous |
| 2. | Endodermis | Starch sheath |
| 3. | Medullary rays | Parenchyma cells |
| 4. | Protoxylem | Endarch |
Subtopic: Dicot Stem |
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Match each item in Column I with one in Column II and select the correct match from the codes given:
Codes:
| Column I | Column II | ||
| A. | Dicot stem | P. | Vascular bundles are arranged in a ring |
| B. | Monocot stem | Q. | Pith is small or inconspicuous |
| C. | Dicot root | R. | Vascular bundles are many and scattered in the ground tissue with no definite arrangement. |
| D. | Monocot root | S. | Pith is large and well developed |
| A | B | C | D | |
| 1. | Q | S | P | R |
| 2. | S | Q | R | P |
| 3. | P | R | Q | S |
| 4. | R | P | S | Q |
Subtopic: Anatomy of Root | Dicot Stem | Monocot Stem |
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In dicot stems, each vascular bundle is:
1. conjoint, open, and with endarch protoxylem.
2. conjoint, closed, and with endarch protoxylem.
3. radial, open, and with endarch protoxylem.
4. conjoint, open, and with exarch protoxylem.
1. conjoint, open, and with endarch protoxylem.
2. conjoint, closed, and with endarch protoxylem.
3. radial, open, and with endarch protoxylem.
4. conjoint, open, and with exarch protoxylem.
Subtopic: Dicot Stem |
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The epidermal tissue system in plants:
1. Only I and II are correct
2. Only III and IV are correct
3. Only I and III are correct
4. Only II and IV are correct
| I: | forms the outer-most covering of the whole plant body. |
| II: | comprises epidermal cells, stomata and the epidermal appendages – the trichomes and hairs. |
| III: | is usually multi-layered. |
| IV: | has parenchymatous cells without a vacuole. |
2. Only III and IV are correct
3. Only I and III are correct
4. Only II and IV are correct
Subtopic: Epidermal Tissue System |
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