Which of the following statements is incorrect about companion cells? (a) It is specialized parenchyma cell (b) Its nucleus controls the function of sieve tube (c) It helps in maintaining the pressure gradient tube (d) It is present in all vascular plants having phloem
Option D. Companion cells are specialised parenchyma cell, positioned withinside the phloem of flowering plant life and intently related to the improvement and characteristic of a sieve-tube detail. Its nucleus regulates the interest of the adjoining sieve detail and to participate in loading and unloading sugar into the sieve detail via way of means of preserving stress in sieve tube. Companion cells are gift best in flowering flora however now no longer in all vascular plant life.
