NEET · Biology · STD 11 - 6. Anatomy flowering plants
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
- A \((iv), (i), (iii), (ii)\)
- B \((iv), (iii), (i), (ii)\)
- C \((iii), (iv), (ii), (i)\)
- D \((i), (ii), (iv), (iii)\)
Answer & Solution
Correct Answer
(A) \((iv), (i), (iii), (ii)\)
Step-by-step Solution
Detailed explanation
(a) : In a woody dicot stem, phellem (cork) forms the outermost layer followed by phellogen and then secondary cortex (phelloderm). Secondary phloem forms a narrow circle on the outer side of vascular cambium whereas secondary xylem occurs on the inner side of vascular cambium.
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