Closed vascular bundles lack:
1. Ground tissue
2. Conjuctive tissue
3. Cambium
4. Pith
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn Dicots, Secondary growth is possible because of
1. cambium
2. xylem and Phloem
3. Vascular bundle
4. Both 2. and 3.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyRadial vascular bundle arrangement is most common in
1. roots
2. stem, and roots
3. leaves
4. All of the above
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyVascular bundles in monocotyledons are considered closed because:
1. | a bundle sheath surrounds each bundle |
2. | cambium is absent |
3. | there are no vessels with perforations |
4. | xylem is surrounded all around by phloem |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn dicot stem the vascular bundle is:-
1. Conjoint, open and with exarch protoxylem.
2. Conjoint, open and with endarch protoxylem.
3. Conjoint and closed.
4. Scattered, each surrounded by a sclerenchymatous bundle sheath.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn radial vascular bundle xylem and phloem are present on _____________radii and in
an ___________manner.
1. different and consecutive
2. same and alternate
3. different and alternate
4. same and consecutive
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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 & BiologyConjoint open vascular bundles are present in
1. stem of dicots only
2. stem of dicots and gymnosperms
3. stem of monocots and gymnosperms
4. stem of monocots only
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySome vascular bundles are described as open because these:
1. | are not surrounded by pericycle |
2. | are surrounded by pericycle but no endodermis |
3. | are capable of producing secondary xylem and phloem |
4. | possess conjunctive tissue between xylem and phloem |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology