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Q. No.Unlike dicot stems, the hypodermis of monocot stem is composed of:
1. Parenchyma
2. Sclerenchyma
3. Collenchyma
4. Chlorenchyma
Subtopic: Monocot Stem |
83%
From NCERT
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The cells of which tissue in plants are living, show angular wall thickening and provide mechanical support?
| 1. | Xylem | 2. | Sclerenchyma |
| 3. | Collenchyma | 4. | Epidermis |
Subtopic: Simple Tissue: Chollenchyma & Sclerenchyma |
83%
From NCERT
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The given diagram shows the transverse section of a:
| 1. | Monocot stem | 2. | Dicot stem |
| 3. | Monocot root | 4. | Dicot root |
Subtopic: Monocot Stem |
72%
From NCERT
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Identify the pair that is characterised by the presence of a well-developed pith:
1. Monocot stem and dicot root
2. Monocot and dicot stems
3. Dicot stem and dicot root
4. Dicot stem and monocot root
1. Monocot stem and dicot root
2. Monocot and dicot stems
3. Dicot stem and dicot root
4. Dicot stem and monocot root
Subtopic: Anatomy of Root | Dicot Stem |
67%
From NCERT
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Plant cells that lack a nucleus at maturity are:
| 1. | Cambium cells | 2. | Cells of pericycle |
| 3. | Xylem parenchyma | 4. | Sieve tubes |
Subtopic: Complex Tissue: Phloem |
91%
From NCERT
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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. | Monocot stem | P. | Conjoint and closed vascular bundles |
| B. | Monocot root | Q. | Polyarch xylem, radial vascular bundles |
| C. | Dicot stem | R. | Conjoint and open vascular bundles |
| D. | Dicot root | S. | Two to four xylem and phloem patches |
Codes:
| A | B | C | D | |
| 1. | P | Q | R | S |
| 2. | S | R | Q | P |
| 3. | P | Q | S | R |
| 4. | S | R | P | Q |
Subtopic: Monocot Stem |
85%
From NCERT
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The number of features seen in a dicotyledonous stem from among the features given below is:
| I: | Sclerenchymatous pericycle |
| II: | Casparian strips in endodermis are very common |
| III: | Collechymatous hypodermis |
| IV: | Conjoint open vascular bundles with exarch protoxylem |
| 1. | 4 | 2. | 3 |
| 3. | 2 | 4. | 1 |
Subtopic: Dicot Stem |
56%
From NCERT
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The given figure shows the transverse section of a:
1. Monocot root
2. Monocot stem
3. Dicot stem
4. Dicot root
1. Monocot root2. Monocot stem
3. Dicot stem
4. Dicot root
Subtopic: Dicot Stem |
75%
From NCERT
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Anatomical features of a dorsiventral leaf include:
| 1. | Parallel venation and a single layer of palisade cells. |
| 2. | Differentiated upper and lower epidermis, with the upper epidermis being thicker. |
| 3. | Undifferentiated mesophyll and scattered vascular bundles. |
| 4. | Differentiated mesophyll into palisade and spongy tissues. |
Subtopic: Dicot Leaf |
89%
From NCERT
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Consider the given two statements:
| Assertion (A): | Gymnosperms have vessels in their xylem. |
| Reason (R): | The presence of vessels in gymnosperms helps in the efficient transport of water and minerals. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Complex Tissue: Xylem |
88%
From NCERT
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