Select the incorrect statement with respect to vessel

1. Devoid of protoplasm.
2. Lignified wall.
3. Long cylindrical tube like cells.
4. Presence of vessel is characteristic of gymnosperm.

Subtopic:  Complex Tissue: Xylem |
 88%
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In the given diagram, which is not related with (A)
as indicated in the diagram?

1. Complimentary cells.
2. Involved in the exchange of gases.
3. Lens-shaped opening called lenticels.
4. Found in herbaceous trees.

Subtopic:  Activity of Cork Cambium |
 59%
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The diagram given below belongs to -

1. Dicot stem having conjoint and collateral
vascular bundles

2. Monocot stem having conjoint and collateral
vascular bundles

3. Dicot root with polyarch condition

4. Monocot root with radial vascular bundles

Subtopic:  Monocot Stem |
 78%
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Hypodermis in dicot stem is composed of
1. Parenchyma

2. Collenchyma

3. Sclerenchyma

4. Both 1. and 3.

Subtopic:  Dicot Stem |
 85%
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The intrafascicular cambium

1. is a simple permanent tissue

2. is a meristematic tissue

3. is a complex permanent tissue

4. is secondary meristem

Subtopic:  Activity of Vascular Cambium (OLD NCERT) |
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The conjuctive tissues lie between the

1. Xylem and phloem

2. Pericycle and Endodermis

3. Epidermis and endodermis

4. Epidermis and hypodermis

Subtopic:  Anatomy of Root |
 88%
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The feature which is common to both heartwood and sapwood is

1. Both are the regions of secondary xylem

2. Both are involved in the conduction of water.

3. Both comprise dead elements with the accumulation of aromatic compounds.

4. Both are located in the central layers of the stem.

Subtopic:  Types of Wood (OLD NCERT) |
 78%
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In a dicot stem, the interfascicular cambium strip arises 

1. Between xylem and phloem

2. From medullary rays

3. From pith

4. From pericycle

Subtopic:  Activity of Vascular Cambium (OLD NCERT) |
 70%
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Column I  Column II
A. Spring wood or early wood
B. Autumn wood or late wood
I. Lighter in colour
II. Density high
III. Density low
IV. Darker in colour           
V. Larger number of xylary elements
VI. Vessels with wider cavity
VII. Lesser number of xylary elements
VIII. Vessels with small cavity

        
Which of the following matching is correct?

1. A – II, IV, VII, VIII; B – I, III, V, VI
2. A – I, II, VIII, VIII; B – III, IV, V, VI
3. A – I, III, V, VI; B – II, IV, VII, VIII
4. A – I, III, VII, VIII; B – II, IV, V, VI

Subtopic:  Activity of Cork Cambium |
 79%
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Cylindrical meristem is term used for?
1. Lateral meristem.
2. Promeristem.
3. Intercalary meristem.
4. Primary meristem.

Subtopic:  Meristematic Tissue:Classification (OLD NCERT) |
 76%
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