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Q. No.Consider the given two statements:
Assertion (A):
Phellogen is a secondary meristem that forms cork on the outer side and secondary cortex on the inner side.
Reason (R):
Phellogen is formed every year from hypodermis and pericycle in dicot root and dicot stem respectively.
1.
Both (A) and (R) are True and (R) correctly explains (A)
2.
Both (A) and (R) are True but (R) does not correctly explain (A).
3.
(A) is True but (R) is False.
4.
Both (A) and (R) are False.
Subtopic: Â Activity of Cork Cambium |
 59%
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A: Secondary growth is absent in monocots
R: Monocots lack vascular cambium.
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: Â Monocot Stem |
 87%
From NCERT
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Select incorrect statements from the given below:
| (i) | Endodermis with Casparian strips are found in the dicot stem. |
| (ii) | The endodermis is a part of the stele. |
| (iii) | Open vascular bundles are found in some monocots. |
| (iv) | Bulliform cells are found in the upper epidermis in the isobilateral leaf. |
1 (i) and (ii)
2. (ii) and (iii)
3. (i), (ii) and (iii)
4. Only (iv)
Subtopic: Â Monocot Stem |
 52%
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3. Match the following columns.
|
Column I |
Column II |
|
A. Cuticle B. Bulliform cells C. Stomata D. Epidermis |
1. Guard cells 2. Single layer 3. Waxylayer 4. Empty colourless cell |
Codes
| Options: | A | B | C | D |
| 1. | 3 | 4 | 1 | 2 |
| 2. | 1 | 2 | 3 | 4 |
| 3. | 3 | 2 | 4 | 1 |
| 4. | 3 | 2 | 1 | 4 |
Subtopic: Â Vascular Tissue System |
 93%
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Match the following and choose the correct option from below
|
A |
Cuticle |
i. |
Guard cells |
|
B |
Bulliform cells |
ii. |
Single layer |
|
C |
Stomata |
iii. |
Waxy layer |
|
D |
Epidermis |
iv. |
Empty colourless cell |
Options:
|
1. |
A-iii |
B-iv |
C-i |
D-ii |
|
2. |
A-i |
B-ii |
C-iii |
D-iv |
|
3. |
A-iii |
B-ii |
C-iv |
D-i |
|
4. |
A-iii |
B-ii |
C-i |
D-iv |
Subtopic: Â Epidermal Tissue System |
 92%
From NCERT
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Read the following statements:
How many the above statements are correct?
1. Four
2. Six
3. Two
4. Three
| (i) | The first formed primary xylem elements are called protoxylem and the later formed primary xylem is called metaxylem |
| (ii) | Primary xylem is endarch in stems |
| (iii) | Primary xylem is exarch is roots |
| (iv) | Phloem transports food materials, usually from leaves to other plants parts |
| (v) | Vessel members are interconnected through perforations in their common walls |
| (vi) | Tracheids are elongated or tube like cells with thick, lignified walls and tapering cells |
How many the above statements are correct?
1. Four
2. Six
3. Two
4. Three
Subtopic: Â Complex Tissue: Xylem |
 85%
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Read the following statements:
How many of the above statements are correct?
1. Three
2. Two
3. One
4. Four
| (i) | The sieve tube elements and companion cells are connected by pit fields present between their common longitudinal walls. |
| (ii) | Pholem parenchyma is made of elongated non-tapering cylindrical cells which have scanty cytoplasm. |
| (iii) | Pholem fibres are made of parenchymatous cells. |
| (iv) | Companion cells help in maintaining the pressure gradient in the sieve tube. |
| (v) | The phloem parenchyma stores food material and other substances like resins, latex, and mucilage |
How many of the above statements are correct?
1. Three
2. Two
3. One
4. Four
Subtopic: Â Complex Tissue: Phloem |
 61%
From NCERT
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Read the following statements:
How many of the above statements are correct?
1. One
2. Two
3. Four
4. Five
| (i) | Epidermal cells have a lower number of chloroplasts or lack them completely, except for the guard cells. |
| (ii) | Epidermis is mostly single-layered except in the leaves of Ficus and Peperomia. |
| (iii) | Epidermis lack intercellular spaces. |
| (iv) | Root epidermis lack cuticle. |
| (v) | In plants with secondary growth, the epidermis of roots and stems is usually replaced by a periderm through the action of cork cambium or phellogen. |
How many of the above statements are correct?
1. One
2. Two
3. Four
4. Five
Subtopic: Â Epidermal Tissue System |
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Match the columns:
1. A = (ii), B = (iii), C =(i), D = (iv)
2. A = (iii), B = (ii), C =(i), D = (iv)
3. A = (iv), B = (iii), C =(i), D = (ii)
4. A = (iii), B = (iv), C =(ii), D = (i)
| Column-I | Column-II | ||
| A. | Bean shaped guard cell | (i) | Dicot stem |
| B. | Dumb-bell shaped guard cell | (ii) | Monocot leaf |
| C. | Trichome | (iii) | Dicot leaf |
| D. | Exarch xylem | (iv) | Dicot and monocot root |
1. A = (ii), B = (iii), C =(i), D = (iv)
2. A = (iii), B = (ii), C =(i), D = (iv)
3. A = (iv), B = (iii), C =(i), D = (ii)
4. A = (iii), B = (iv), C =(ii), D = (i)
Subtopic: Â Epidermal Tissue System |
 84%
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Read the following statements with respect to interstellar secondary growth in dicot stems:
How many of the above statements are correct?
1. Three
2. Four
3. Five
4. Two
| (i) | Autumn wood and spring wood appear as alternate concentric rings and constitute an annual ring. |
| (ii) | Late wood possesses vessels of narrow diameter relative to early wood. |
| (iii) | Annual rings seen in cut stems give an estimate of the age of the tree and this method is called a dendrogram. |
| (iv) | Cambium is more active during the spring season than the winter season. |
| (v) | Growth rings or annual rings are very prominent in the trees growing near sea shores. |
How many of the above statements are correct?
1. Three
2. Four
3. Five
4. Two
Subtopic: Â Activity of Cork Cambium |
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