Q. In respiration, respiratory substances can be used

A) Carbohydrate
B) Protein
C) Organic acid
D) All of these
Explanation

Usually carbohydrate are oxidised to release energy, but proteins, fats and even organic acids can be used as respiratory substances in some plants, under certain condition

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.