In conjoint type of vascular bundles:

I: xylem and phloem are jointly situated on the same radius of vascular bundles.
II: xylem is usually located on the outer side of the phloem.
 
1. Only I is correct 2. Only II is correct
3. Both are correct 4. Both are incorrect

Subtopic:  Vascular Tissue System |
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Casparian strips are:

1. waxy deposition of suberin on only the tangential walls of the endodermal cells
2. waxy deposition of suberin on only the radial walls of the endodermal cells
3. waxy deposition of suberin on both tangential and radial walls of the endodermal cells
4. waxy deposition of lignin on both tangential and radial walls of the endodermal cells
Subtopic:  Dicot Stem |
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In a dicot root, the number of patches of xylem and phloem are usually:

1. 2 to 4 2. 4 to 6
3. 6 to 8 4. 8 to 10
Subtopic:  Anatomy of Root |
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The term ‘stele’in a dicot root does not include:

1. Endodermis 2. Pericycle
3. Vascular bundles 4. Pith
Subtopic:  Anatomy of Root |
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Monocot root anatomy is different from the anatomy of dicot root in all the following aspects except:
1. More developed pith
2. Polyarch vascular bundles
3. Absence of secondary growth
4. Presence of multicellular root hairs

Subtopic:  Anatomy of Root |
 70%
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The hypodermis of a dicotyledonous stem:

1. is parenchymatous and synthesizes and stores food
2. is collenchymatous and provides mechanical strength to the young stem
3. is sclerenchymatous and provides mechanical strength to the young stem
4. is parenchymatous and provides mechanical strength to the young stem
Subtopic:  Dicot Stem |
 86%
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The ring arrangement of vascular bundles is a characteristic feature of:

1. Monocot stem 2. Dicot stem
3. Monocot root 4. Dicot root
Subtopic:  Dicot Stem |
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Which of the following is a feature of the anatomy of a monocot stem?
I. Collenchymatous hypodermis
II. Scattered vascular bundles

1. Only I 2. Only II
3. Both I and II 4. Neither I nor II
Subtopic:  Monocot Stem |
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In a monocot stem:

1. Each vascular bundle is surrounded by a sclerenchymatous bundle sheath
2. Ground tissue is very poorly developed
3. Vascular bundles are conjoint and open with water containing cavities
4. Phloem parenchyma is present
Subtopic:  Monocot Stem |
 69%
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Root hairs are:
1. unicellular extensions of subsidiary cells
2. unicellular elongations of epidermal cells
3. unicellular elongations of ground tissue cells
4. appendages of the cuticle

Subtopic:  Meristematic Tissue: Root Apex (OLD NCERT) |
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