Closed vascular bundles lack

(1) ground tissue

(2) conjunctive tissue

(3) cambium

(4) pith

Subtopic:  Vascular Tissue System |
 89%
From NCERT
NEET - 2012
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Water containing cavities in vascular bundles are found in

1. sunflower

2. maize

3. Cycas

4. Pinus

Subtopic:  Monocot Stem |
 62%
NEET - 2012
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Ground tissues includes

1. All tissues except epidermis and vascular bundles

2. Epidermis and cortex

3. All tissues internal to endodermis

4. All tissues external to endodermis

Subtopic:  Epidermal Tissue System |
 87%
From NCERT
NEET - 2011
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In land plants, the guard cells differ from other epidermal cells in having:-

1. mitochondria

2. endoplasmic reticulum

3. chloroplasts

4. cytoskeleton

Subtopic:  Epidermal Tissue System |
 79%
NEET - 2011
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The cork cambium, cork and secondary cortex are collectively called

1. phellogen

2. periderm

3. phellem   

4. phelloderm

Subtopic:  Activity of Cork Cambium |
 78%
From NCERT
NEET - 2011
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The chief water conducting elements of xylem in gymnosperms are

1. vessels

2. fibres

3. transfusion tissue

4. tracheids

Subtopic:  Complex Tissue: Xylem |
 66%
From NCERT
NEET - 2010
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Which one of the following is not a lateral meristem?

1. Cork cambium

2. Interfascicular cambium

3. Phellogen

4. Intercalary meristem

Subtopic:  Meristematic Tissue:Classification (OLD NCERT) |
 75%
From NCERT
NEET - 2010
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Heartwood differs from sapwood in 

1. presence of rays and fibres

2. absence of vessels and parenchyma

3. having dead and non-conducting elements

4. being susceptible to pests and pathogens

Subtopic:  Types of Wood (OLD NCERT) |
 87%
From NCERT
NEET - 2010
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In barley stem, vascular bundles are

1. open and scattered

2. closed and scattered

3. open and in a ring

4. closed and radial

Subtopic:  Monocot Stem |
 68%
NEET - 2009
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Guard cells help in ?

1. protection against grazing

2. transpiration

3. guttation

4. fighting against infection

Subtopic:  Epidermal Tissue System |
 88%
From NCERT
NEET - 2009
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