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Q. No.In grasses certain adaxial epidermal cells along the vein modify themselves into large, empty, colourless cells called ________.
(1) Bark
(2) Bulliform cells
(3) Bundle sheath cells
(4) Spongy mesophyll cells
(1) Bark
(2) Bulliform cells
(3) Bundle sheath cells
(4) Spongy mesophyll cells
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyBulliform cells help in
(1) Heat resistance
(2) Minimizing water loss
(3) Maintaining ion balance
(4) Mineral acquisition
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe similar size of vascular bundle in monocot leaf is due to
1. Reticulate venation
2. Parallel venation
3. Branched venation
4. Radial venation
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe tissue involved in secondary growth are
(1) Vascular cambium
(2) Cork cambium
(3) Pith
(4) Both A and B
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn dicot stem the cells of cambium present between primary xylem and primary phloem is the ___________.
(1) Intrafascicular cambium
(2) Interfascicular cambium
(3) Metafascicular cambium
(4) Radial cambium
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhen cambial ring becomes active, the cells cut off toward pith mature into
(1) Primary xylem
(2) Secondary xylem
(3) Primary phloem
(4) Secondary phloem
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhen cambial rings become active and the cells cut off towards periphery mature into
(1) Secondary phloem
(2) Primary phloem
(3) Primary xylem
(4) Secondary xylem
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe cambium is generally more active on the _________ side than the _________ side.
(1) Inner, outer
(2) Outer, inner
(3) Radial, inner
(4) Radial, outer
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe primary and secondary phloem gets gradually crushed due to the continued formation and accumulation of _________.
(1) Secondary xylem
(2) Resin
(3) Wax
(4) Bark
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn dicot stem, at some places the cambium forms a narrow band of parenchyma which passes through the secondary xylem and secondary phloem in radial direction these are called _________.
(1) Secondary medullary rays
(2) Rays
(3) Primary medullary rays
(4) Tertiary medullary rays
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