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Q. No.Read the different components from I to IV in the list given below and tell the correct order of the components with reference to their arrangement from outer side to inner side in a woody dicot stem.
I. Secondary Cortex
II. Wood
III. Secondary phloem
IV. Phellem
The correct order is
1. III,IV,II,I
2. I,II,IV,III
3. IV,I,III,II
4. IV,III,I,II
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology2. 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 & Biology(1) Scattered vascular bundles
(2) Vasculature without cambium
(3) Cambium sandwiched between phloem and xylem along the radius
(4) Open vascular bundles
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyYou are given a fairly old piece of dicot stem and a dicot root. Which of the following anatomical structures will your use to distinguish between the two?
1. Secondary xylem
2. Secondary phloem
3. Protoxylem
4. Cortical cells
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyTracheids differ from the tracheary elements in :
1. Having casparian strips
2. Being imperforate
3. Lacking nucleus
4. Being lignified
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAge of a tree can be estimated by :
1. biomass
2. number of annual rings
3. diameter of its heartwood
4. its height and girth
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyLenticels are involved in:
1. Gaseous exchange
2. Food transfer
3. Photosynthesis
4. Transpiration
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyInterfascicular cambium develops from the cells of
1. Xylem parenchyma
2. Endodermis
3. Pericycle
4. Medullary rays
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe common bottle cork is a product of
1. dermatogen
2. phellogen
3. xylem
4. vascular cambium
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyCompanion cells are closely associated with
1. Sieve elements
2. Vessel elements
3. Trichomes
4. guard cells
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