The term 'bark' includes:
I. Phellogen
II. Phellem
III. Phelloderm
IV. Secondary phloem
1. I, II and III only
2. I, II and IV only
3. II, III and IV only
4. I, II, III and IV only
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIdentify the incorrect statement:
1. The presence of vessels is a characteristic of angiosperms
2. In roots the primary xylem is exarch
3. Gymnosperms lack albuminous cells and sieve cells
4. Bast fibers are generally absent in primary phloem
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyParts of grasses removed by the grazing herbivores are regenerated due to the activity of:
1. Apical meristem
2. Intercalary meristem
3. Interfascicular cambium
4. Fascicular vascular cambium
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn the dicot root, the vascular cambium:-
1. is absent
2. is completely secondary in origin
3. does not form a continuous ring
4. originates from the tissue just above the phloem bundles
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe pericycle, which gives rise to lateral roots, consists of:
1. Epithelial cells
2. Meristematic cells
3. Parenchymal cells
4. Endodermal cells
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySummer wood is:
(1) the same as heartwood.
(2) found to the outside of each annular ring of xylem.
(3) found to the inside of each annular ring of xylem.
(4) formed throughout the growing season.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe given transverse section is of:
(1) Monocot stem
(2) Dicot stem
(3) Monocot root
(4) Dicot root
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe vascular bundle shown in the diagram is most likely to be seen in:
1. Monocot stem
2. Dicot stem
3. Monocot root
4. Dicot root
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe main function of the plant tissue shown below is:
1. Storage of nutrients
2. Providing buoyancy to submerged plants
3. Mechanical support to growing parts of a plant
4. Increase in the length of the plant
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIdentify the wrong statement in context of heartwood.
(1) Organic compounds are deposited in it
(2) it is highly durable
(3) It conducts water and minerals efficiently
(4) It comprises dead elements with highly lignified walls
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology