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Q. No.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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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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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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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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Unlike dicot stems, the hypodermis of monocot stem is composed of:
| 1. | Parenchyma | 2. | Sclerenchyma |
| 3. | Collenchyma | 4. | Chlorenchyma |
Subtopic: Monocot Stem |
84%
Level 1: 80%+
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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 |
68%
Level 2: 60%+
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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%
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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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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