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Q. No.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 |
87%
Level 1: 80%+
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Match the following plant parts with their primary functions:
Codes:
| Column I | Column II | ||
| A | Stomata | P | Supports the leaf blade and connects it to the stem |
| B | Xylem | Q | Involved in the transport of water and minerals from roots to leaves |
| C | Phloem | R | Involved in the transport of food from leaves to other parts of the plant |
| D | Petiole | S | Facilitates gas exchange and transpiration in plants |
| A | B | C | D | |
| 1. | S | Q | R | P |
| 2. | P | Q | R | s |
| 3. | P | R | Q | S |
| 4. | Q | P | S | R |
Subtopic: Complex Tissue: Xylem | Complex Tissue: Phloem |
95%
Level 1: 80%+
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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 |
88%
Level 1: 80%+
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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 |
58%
Level 3: 35%-60%
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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%
Level 1: 80%+
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| Assertion (A): | Sclerenchyma provides mechanical support to organs and is usually dead and without protoplasts. |
| Reason (R): | Sclerenchyma consists of long, narrow cells with thick and lignified cell walls having a few or numerous pits. |
| 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. | (A) is False but (R) is True. |
Subtopic: Simple Tissue: Chollenchyma & Sclerenchyma |
62%
Level 2: 60%+
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Consider the given two statements:
1. Statement I is correct; Statement II is correct
2. Statement I is correct; Statement II is incorrect
3. Statement I is incorrect; Statement II is correct
4. Statement I is incorrect; Statement II is incorrect
| Statement I: | When xylem and phloem within a vascular bundle are arranged in an alternate manner along the different radii, the arrangement is called radial, such as in roots. |
| Statement II: | In conjoint type of vascular bundles, the xylem and phloem are jointly situated along the same radius of vascular bundles. |
1. Statement I is correct; Statement II is correct
2. Statement I is correct; Statement II is incorrect
3. Statement I is incorrect; Statement II is correct
4. Statement I is incorrect; Statement II is incorrect
Subtopic: Vascular Tissue System |
94%
Level 1: 80%+
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Consider the given two statements:
| Assertion (A): | Phloem in angiosperms is composed of sieve tube elements, companion cells, phloem parenchyma, and phloem fibres. |
| Reason (R): | Gymnosperms have albuminous cells and sieve cells but lack sieve tubes and companion cells. |
| 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. | (A) is False, but (R) is True. |
Subtopic: Complex Tissue: Phloem |
91%
Level 1: 80%+
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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%
Level 2: 60%+
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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 |
84%
Level 1: 80%+
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