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Q. No.Read the following statements:
A- Annual rings can be distinctly observed in plants growing in temperate regions
B- In temperate regions, the climatic conditions are not uniform throughout the year
Choose the correct option:
1. Statement A is correct but statement B is wrong
2. Both the statement A and B are correct and statement B is the correct explanation of statement A
3. Both the statements A and B are correct but statement B is not the correct explanation of statement A
4. Both the statements A and B are incorrect
Subtopic: Activity of Cork Cambium |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following statements are correct for sap wood?
(i) It does not help in water conduction
(ii) It is light coloured
(iii) It is also called alburnum
(iv) Its tracheary elements are filled with tannins, resins, oils, gums aromatic compounds, and essential oils
(v) It is hard and durable
1. (ii), (iii)
2. (i), (ii), (iii)
3. (iv), (v)
4. (iii), (iv), (v)
(i) It does not help in water conduction
(ii) It is light coloured
(iii) It is also called alburnum
(iv) Its tracheary elements are filled with tannins, resins, oils, gums aromatic compounds, and essential oils
(v) It is hard and durable
1. (ii), (iii)
2. (i), (ii), (iii)
3. (iv), (v)
4. (iii), (iv), (v)
Subtopic: Activity of Secondary Xylem |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyRead the following statements with respect to interstellar secondary growth in dicot stems:
(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
(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
From NCERT
Subtopic: Activity of Cork Cambium |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyRead the following statements with respect to the secondary growth in dicot stems:
How many of the above statements are correct?
1. Three
2. Two
3. Four
4. One
| (i) | The cambium is generally more active on the inner side than on the outer side. |
| (ii) | The cells which are cut off towards pith by cambium mature into secondary phloem and cells cut off towards periphery mature into secondary xylem. |
| (iii) | The amount of secondary xylem produced is more than secondary phloem. |
| (iv) | The primary and secondary phloems get gradually crushed due to the continued formation and accumulation of secondary xylem. |
| (v) | The primary xylem also gets crushed and rarely remains intact. |
How many of the above statements are correct?
1. Three
2. Two
3. Four
4. One
Subtopic: Activity of Secondary Xylem |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMatch 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: Epidermal Tissue System |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyRead the following statements:
(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
(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
From NCERT
Subtopic: Epidermal Tissue System |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyRead the following statements:
(i) Meristematic tissue is made of immature cells
(ii) A common structural feature of vessel elements and sieve tube is an enucleate condition
(iii) Root cap in monocots is formed by calyptrogen
(iv) All xylem elements are dead at maturity
(v) Collenchyma is a dead mechanical tissue
How many of the above statements are correct?
1. Three
2. Four
3. Two
4. Five
(i) Meristematic tissue is made of immature cells
(ii) A common structural feature of vessel elements and sieve tube is an enucleate condition
(iii) Root cap in monocots is formed by calyptrogen
(iv) All xylem elements are dead at maturity
(v) Collenchyma is a dead mechanical tissue
How many of the above statements are correct?
1. Three
2. Four
3. Two
4. Five
From NCERT
Subtopic: Meristematic Tissue:Classification |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyRead the following statements:
(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
(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: Complex Tissue: Phloem |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyRead the following statements:
(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
(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: Complex Tissue: Xylem |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMatch 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: Epidermal Tissue System |
To view explanation, please take trial in the course below.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySelect Chapter Topics:
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