Q. The balloon-shaped structures called tyloses
A) originate in the lumen of vessels
B) characterise the sapwood
C) are extensions of xylem parenchyma cells into vessels
D) are linked to the ascent of sap through xylem vessels
Explanation
[Solution] Tyloses are balloon-like outgrowths of xylem parenchyma cells into the lumen of vessels through pits, found in heartwood. (In this PDF the options for this question are misprinted; they have been restored from the official NEET-II 2016 paper.) Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.