Which one is true of parenchyma
1.help in storage, secretion and photosynthesis
2.intercellular spaces are schizogenous in origin
3.universal tisssue
4.All of the above

Subtopic:  Simple Tissue: Parenchyma |
 86%
From NCERT
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Which of the following is known as living mechanical tissue
1.parenchyma
2.collenchyma
3.sclerenchyma
4.All of the above

Subtopic:  Simple Tissue: Chollenchyma & Sclerenchyma |
 74%
From NCERT
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Which one is true of collenchyma?
1. forms the hypodermis of dicot stem
2. present below epidermis in layers or patches
3. thickened corners due to cellulose, hemicellulose, and pectin deposition
4. All of the above

Subtopic:  Simple Tissue: Chollenchyma & Sclerenchyma |
 96%
From NCERT
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Which one is true for sclereids
1.highly thickened dead walls with narrow lumen
2.present in fruit walls of nuts
3.pulp of guava, pear, and sapots
4.All of the above

Subtopic:  Simple Tissue: Chollenchyma & Sclerenchyma |
 98%
From NCERT
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Complex tissues are
1.heterogenous
2.absent in gametophytes
3.known as vascular tissues
4.All of these

Subtopic:  Complex Tissue: Xylem | Complex Tissue: Phloem |
 90%
From NCERT
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How many elements of the xylem are dead
1.4
2.3
3.2
4.1

Subtopic:  Complex Tissue: Xylem |
 78%
From NCERT
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In angiosperms, the main water transporting elements are
1.tracheids
2.vessels
3.Both 1 and 2

Subtopic:  Complex Tissue: Xylem |
 57%
From NCERT
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The first fomed primary xylem elements are__________and later formed is _____________
1.protoxylem , metaxylem
2.metaxylem , protoxylem
3.tracheids, vessels
4.Both 2 and 3

Subtopic:  Complex Tissue: Xylem |
 96%
From NCERT
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The type of primary xylem when protoxylem lies towards the pith is known as
1.endarch
2.exarch
3.endoexarch
4.Both 1 and 3

Subtopic:  Complex Tissue: Xylem |
 90%
From NCERT
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Phloem in angiosperms is composed of
1.sieve tube elements, companion cells, phloem parenchyma, phloem fibres
2.sieve cells, companion cells, phloem parenchyma, phloem fibres
3.albuminous cells, companion cells, phloem parenchyma, phloem fibres
4.Both 1 and 2

Subtopic:  Complex Tissue: Phloem |
 84%
From NCERT
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