Closed vascular bundles lack:

1. Ground tissue

2. Conjuctive tissue

3. Cambium

4. Pith

Subtopic:  Vascular Tissue System |
 89%
From NCERT
AIPMT - 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 |
 67%
AIPMT - 2012
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Gymnosperms are also called softwood spermatophytes because they lack:

1. Cambium

2. Phloem fibres

3. Thick-walled tracheids

4. Xylem fibres

Subtopic:  Complex Tissue: Xylem |
AIPMT - 2012
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Ground tissue 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:  Ground Tissue System |
 90%
AIPMT - 2011
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Inland plants, the guard cells differ from other epidermal cells in having:

1.  mitochondria

2.  endoplasmic reticulum

3.  chloroplasts

4.  cytoskeleton

Subtopic:  Epidermal Tissue System |
 80%
AIPMT - 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 |
 83%
From NCERT
AIPMT - 2011
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NEET 2023 - Target Batch - Aryan Raj Singh
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Links
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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 |
 65%
From NCERT
AIPMT - 2010
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The annular and spirally thickened conducting elements generally develop in the protoxylem when the root or stem is:

1. maturing

2. elongating

3. widening

4. differentiating

Subtopic:  Anatomy of Root |
AIPMT - 2009
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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:  Dicot Stem | Monocot Stem |
 68%
AIPMT - 2009
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Anatomically, fairly old dicotyledonous root is distinguished from the dicotyledonous stem by:

1. absence of secondary xylem

2. absence of secondary phloem

3. presence of cortex

4. position of protoxylem

Subtopic:  Anatomy of Root | Dicot Stem |
 77%
From NCERT
AIPMT - 2009
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
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Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh