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Anatomy of stem and root
Concepts tested here
- Exarch and endarch protoxylem
All Questions
2014 AIPMT 1 question
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You are given a fairly old piece of dicot stem and a dicot root. Which of the following anatomical structures will you use to distinguish between the two?After secondary growth both organs have similar secondary xylem and phloem.
The primary xylem still differs: protoxylem is exarch (towards the periphery) in the root and endarch (towards the centre) in the stem.
