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Q. No.Match each item in Column I with one in Column II and select the correct match from the codes given:
Column I [Plant part]
Column II [Vascular bundle]
A
Dicot root
P
Conjoint and open
B
Monocot root
Q
Conjoint and closed
C
Dicot stem
R
Radial, exarch, 2-6 in number
D
Monocot stem
S
Radial, exarch, polyarch [more than 6]
Codes:
A
B
C
D
1.
R
S
Q
P
2.
R
S
P
Q
3.
P
Q
R
S
4.
Q
P
S
R
Subtopic: Anatomy of Root | Dicot Stem | Monocot Stem |
83%
From NCERT
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All the following produce secondary tissues in a plant body except:
1. Fascicular vascular cambium
2. Interfascicular cambium
3. Cork-cambium
4. Intercalary meristem
1. Fascicular vascular cambium
2. Interfascicular cambium
3. Cork-cambium
4. Intercalary meristem
Subtopic: Meristematic Tissue:Classification (OLD NCERT) |
89%
From NCERT
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In a monocot stem:
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
| I: | hypodermis is collenchymatous |
| II: | vascular bundles are conjoint and closed |
| III: | phloem parenchyma is absent |
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic: Monocot Stem |
77%
From NCERT
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A transverse section of a plant part shows the following features:
| I: | Innermost layer of cortex has casparian strips. |
| II: | Pericycle has parenchymatous cells. |
| III: | Radially arranged two to four xylem and phloem patches. |
This transverse section must be of:
1. Dicot root
2. Monocot root
3. Dicot stem
4. Monocot stem
Subtopic: Anatomy of Root |
85%
From NCERT
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Identify the incorrect statement regarding guard cells in the epidermal tissue system?
| 1. | They enclose stomata. |
| 2. | They are bean shaped in grasses. |
| 3. | The outer walls are thin and the inner walls are highly thickened. |
| 4. | They possess chloroplasts. |
Subtopic: Epidermal Tissue System |
83%
From NCERT
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Which of the following statements about cork cambium is/are correct?
1. Only I
2. Only II
3. Both I and II
4. Neither I nor II
| I: | It usually develops in the cortex region and is a couple of layers thick. |
| II: | It cuts off cells on both sides where the inner cells differentiate into cork and the outer cells differentiate into secondary cortex. |
2. Only II
3. Both I and II
4. Neither I nor II
Subtopic: Activity of Cork Cambium |
67%
From NCERT
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Identify the incorrect statement.
| 1. | Sapwood is involved in conduction of water and minerals from root to leafs. |
| 2. | Sapwood is the innermost secondary xylem and is lighter in colour |
| 3. | Due to deposition of tannins, resins, oils etc., heart wood is dark in colour. |
| 4. | Heart wood does not conduct water but gives mechanical support. |
Subtopic: Types of Wood (OLD NCERT) |
87%
From NCERT
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Identify the correctly matched pairs regarding anatomy of a dicot root:
1. Only II and III
2. Only I, II and III
3. Only I, III and IV
4. Only II, III and IV
| I: | Epiblema | Many of the cells of epiblema protrude in the form of unicellular root hairs. |
| II: | Endodermis | The tangential as well as radial walls of the cells have a deposition of suberin in the form of casparian strips. |
| III: | Pericycle | Initiation of lateral roots and vascular cambium during the secondary growth takes place in these cells |
| IV: | Pith | Large and well developed. |
2. Only I, II and III
3. Only I, III and IV
4. Only II, III and IV
Subtopic: Anatomy of Root |
81%
From NCERT
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Give below are two statements :
In the light of the above statements, choose the correct answer from the options given below:
1. Statement I is incorrect but Statement II is correct.
2. Both Statement I and Statement II are correct.
3. Both Statement I and Statement II are incorrect.
4. Statement I is correct but Statement II is incorrect.
| Statement I: | Endarch and exarch are the terms often used for describing the position of secondary xylem in the plant body. |
| Statement II: | Exarch condition is the most common feature of the root system. |
In the light of the above statements, choose the correct answer from the options given below:
1. Statement I is incorrect but Statement II is correct.
2. Both Statement I and Statement II are correct.
3. Both Statement I and Statement II are incorrect.
4. Statement I is correct but Statement II is incorrect.
Subtopic: Dicot Stem |
58%
From NCERT
NEET - 2023
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Give below are two statements : One is labelled as Assertion (A) and The other is labelled as Reason (R) :
In the light of the above statements, choose the correct answer from the option given below :
| Assertion (A): | Late wood has fewer xylary elements with narrow vessels. |
| Reason (R): | Cambium is less active in winters. |
| 1. | (A) is False but (R) is True. |
| 2. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 3. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 4. | (A) is True but (R) is False |
Subtopic: Types of Wood (OLD NCERT) |
63%
From NCERT
NEET - 2023
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