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Q. No.In dicot roots, the initiation of the lateral roots and the vascular cambium during the secondary growth takes place in:
1.
Pericycle
2.
Endodermis
3.
Conjuctive tissue
4.
Epidermis
Subtopic: Anatomy of Root |
76%
Level 2: 60%+
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In dicot stem the vascular bundle is:-
| 1. | Conjoint, open and with exarch protoxylem. |
| 2. | Conjoint, open and with endarch protoxylem. |
| 3. | Conjoint and closed. |
| 4. | Scattered, each surrounded by a sclerenchymatous bundle sheath. |
Subtopic: Vascular Tissue System |
81%
Level 1: 80%+
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Bulliform cells are found in:
| 1. | dorsiventral leaves and help in photosynthesis. |
| 2. | dorsiventral leaves and help in minimizing water loss. |
| 3. | isobilateral leaves and help in minimizing water loss. |
| 4. | isobilateral leaves and help in photosynthesis. |
Subtopic: Monocot Leaf |
79%
Level 2: 60%+
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The endodermis is absent or indistinct in the:-
1. Roots of all plants
2. Leaves of pteridophytes
3. Leaves of gymnosperms
4. Stems of woody plants
Subtopic: Dicot Stem |
Level 3: 35%-60%
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Identify the incorrect statement:
| 1. | The presence of vessels is a characteristic of angiosperms |
| 2. | In roots the primary xylem is exarch |
| 3. | Gymnosperms lack albuminous cells and sieve cells |
| 4. | Bast fibers are generally absent in primary phloem |
Subtopic: Complex Tissue: Phloem |
78%
Level 2: 60%+
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The given transverse section is of:
| 1. | Monocot stem | 2. | Dicot stem |
| 3. | Monocot root | 4. | Dicot root |
Subtopic: Monocot Stem |
82%
Level 1: 80%+
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The vascular bundle shown in the diagram is most likely to be seen in:
| 1. | Monocot stem | 2. | Dicot stem |
| 3. | Monocot root | 4. | Dicot root |
Subtopic: Vascular Tissue System |
81%
Level 1: 80%+
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The main function of the plant tissue shown below is:
| 1. | Storage of nutrients |
| 2. | Providing buoyancy to submerged plants |
| 3. | Mechanical support to growing parts of a plant |
| 4. | Increase in the length of the plant |
Subtopic: Simple Tissue: Chollenchyma & Sclerenchyma |
91%
Level 1: 80%+
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Consider the following statements:
In a monocot stem-
| I: | Hypodermis is collenchymatous. |
| II: | Vascular bundle are collateral and closed. |
| III: | Trichomes are usually absent. |
Which of the above statements are true?
| 1. | I and II only | 2. | I and III only |
| 3. | II and III only | 4. | I, II and III |
Subtopic: Monocot Stem |
81%
Level 1: 80%+
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Consider the following statements about dicot leaf:
| I: | The epidermis which covers both the upper surface (adaxial epidermis) and lower surface (abaxial epidermis) of the leaf has a conspicuous cuticle. |
| II: | More stomata present on upper surface. |
| III: | Mesophyll is differentiated into palisade and spongy parenchyma. |
Which of the above statements are true?
| 1. | I and II only | 2. | I and III only |
| 3. | II and III only | 4. | I, II and III |
Subtopic: Dicot Leaf |
80%
Level 1: 80%+
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