"Y” is the xylem cell that stores food, and “Z” is a dead phloem cell. What are “Y”, and “Z”?
Both phloem sieve tube cells and xylem vessel cells are derived from same kind of precursor cells but at maturity they are different. What feature is unique to phloem sieve tube cells?
The parenchymatous cells between the xylem and the phloem in a dicot root constitute