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Q. No.All of the following cell types are correctly matched with their functions except
1. mesophyll–photosynthesis.
2. guard cell–regulation of transpiration.
3. sieve-tube member–translocation.
4. companion cell–formation of secondary xylem and phloem.
Subtopic: Complex Tissue: Phloem |
82%
From NCERT
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One important difference between the anatomy of roots and the anatomy of leaves is that:
1. only leaves have phloem and only roots have xylem.
2. root cells have cell walls and leaf cells do not.
3. a waxy cuticle covers leaves but is absent from roots.
4. vascular tissue is found in roots but is absent from leaves.
1. only leaves have phloem and only roots have xylem.
2. root cells have cell walls and leaf cells do not.
3. a waxy cuticle covers leaves but is absent from roots.
4. vascular tissue is found in roots but is absent from leaves.
Subtopic: Epidermal Tissue System |
88%
From NCERT
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| A: | In the dicot stem, the vascular bundles are open. |
| R: | Cambium is present between xylem and phloem of the vascular bundle in the dicot stem. |
| 1. | If both Assertion & Reason are true and the reason is the correct explanation of the assertion. |
| 2. | If both Assertion & Reason are true but the reason is not the correct explanation of the assertion. |
| 3. | If Assertion is a true statement but the Reason is false. |
| 4. | If both Assertion and Reason are false statements. |
Subtopic: Dicot Stem |
85%
From NCERT
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Which of the following has "anucleate" cells
1. Sieve tube elements
2. Xylem Parenchyma
3. Companion cells
4. Phloem Parenchyma
1. Sieve tube elements
2. Xylem Parenchyma
3. Companion cells
4. Phloem Parenchyma
Subtopic: Complex Tissue: Xylem |
83%
From NCERT
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Given below are two statements:
Statement I: The generation of cellular diversity is known as differentiation.
Statement II: Formation of interfascicular cambium and cork cambium from fully differentiated parenchyma cells are examples of dedifferentiation.
In light of the above statements, choose the most appropriate answer from the options given below:
1. Both statement I and statement II are correct.
2. Both statement I and statement II are incorrect.
3. Statement I is correct but statement II is incorrect.
4. Statement I is incorrect but statement II is correct.
Statement I: The generation of cellular diversity is known as differentiation.
Statement II: Formation of interfascicular cambium and cork cambium from fully differentiated parenchyma cells are examples of dedifferentiation.
In light of the above statements, choose the most appropriate answer from the options given below:
1. Both statement I and statement II are correct.
2. Both statement I and statement II are incorrect.
3. Statement I is correct but statement II is incorrect.
4. Statement I is incorrect but statement II is correct.
Subtopic: Activity of Vascular Cambium (OLD NCERT) |
70%
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Initiation of lateral roots and vascular cambium during secondary growth takes place in cells of :
| 1. | Epiblema | 2. | Cortex |
| 3. | Endodermis | 4. | Pericycle |
Subtopic: Anatomy of Root |
74%
From NCERT
NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
The type of tissue commonly found in the fruit wall of nuts is :
| 1. | Parenchyma | 2. | Collenchyma |
| 3. | Sclerenchyma | 4. | Sclereid |
Subtopic: Simple Tissue: Chollenchyma & Sclerenchyma |
51%
From NCERT
NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
Interfascicular cambium is present between:
1. Primary xylem and primary phloem
2. Pericycle and endodermis
3. Two vascular bundles
4. Secondary xylem and secondary phloem
1. Primary xylem and primary phloem
2. Pericycle and endodermis
3. Two vascular bundles
4. Secondary xylem and secondary phloem
Subtopic: Secondary Growth in Root (OLD NCERT) |
50%
From NCERT
NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
Annual rings that are formed due to secondary growth are clearly seen in
1. Roots of aquatic plants
2. Stem of trees in tropical region
3. Both roots and stem of trees in tropical region
4. Stem of trees in temperate regions
1. Roots of aquatic plants
2. Stem of trees in tropical region
3. Both roots and stem of trees in tropical region
4. Stem of trees in temperate regions
Subtopic: Secondary Growth in Root (OLD NCERT) |
67%
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In flowering plants, all the tissues except _________A________and ________B___________constitute the ground tissue. Complete the statement by selecting the correct option for A and B.
A B
1. Epidermis Endodermis
2. Pith Medullary rays
3. Epidermis Vascular bundles
4. Pericycle Vascular bundles
A B
1. Epidermis Endodermis
2. Pith Medullary rays
3. Epidermis Vascular bundles
4. Pericycle Vascular bundles
Subtopic: Ground Tissue System |
91%
From NCERT
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