Question

What are the reactants of cellular respiration?
A) ATP and water
B) sugar and oxygen
C) NADPH and hydrogen
D) carbon dioxide and water

Answer 1

Hi, Xodanielaa!
B)Sugar and oxygen
Glucose and oxygen are the reactants of cellular respiration!
Sugar=glucose.
I hope this helps;)

Answer 2

B) would be the right one! since sugar (glucose) broken down to provide energy for respiration.
whereas D) the reactants are  for photosynthesis! 
:)