Q. Maximum percentage of which element occurs in plant ash?
A) Magnesium
B) Zinc
C) Potassium
D) Calcium
Explanation
Calcium is the constituent of middle lamella of cell walls. It is required as cofactor by some enzymes involved in the hydrolysis of ATP and phospholipids. It also acts as a second messenger in metabolic regulation.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.