Q. Which one of the following elements in plants is not remobilised?
A) Sulphur
B) Phosphorus
C) Calcium
D) Potassium
Explanation
[Solution from source] Calcium is part of the structural middle lamella (calcium pectate) and cannot be moved once laid down, so its deficiency appears first in young tissues. Phosphorus, potassium and sulphur are mobile and are remobilised from older leaves. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.