- A Parenchyma between xylem and phloem bundles in the vascular cylinder of roots
- B Vascular tissue specifically connecting the root system to the stem at the collar region
- C Specialized companion cells embedded within the phloem sieve tube network
- D Endodermal tissue forming the innermost layer of the root cortex
Correct answer: A. Parenchyma between xylem and phloem bundles in the vascular cylinder of roots
Explanation: In dicot roots, the vascular bundles are separate (xylem and phloem alternate). The parenchymatous tissue between them is called conjunctive tissue. It plays a role in the formation of vascular cambium during secondary growth.
Concept context
Internal tissue organisation: meristems, permanent tissues (xylem, phloem, parenchyma), and secondary growth. Frequently tested in NEET.