Q. Surface area of roots by promoting roots growth and root hair formation is increased by
A) Cytokinin
B) Kinetin
C) Ethylene
D) ABA
Explanation
Ethylene promotes root growth and root hair formation. Thus, they help the plants to increase its absorption surface by increasing the surface area
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.