Question

c6h12o6 + 6o2→ 6co2 + 6h2o
above is the equation for photosynthesis. which of the substances are used as reactants in cellular respiration?
c6h12o6 and co2
c6h12o6 and o2
o2 only

Explanation:

Cellular respiration uses glucose ($C_6H_{12}O_6$) and oxygen ($O_2$) as reactants to produce carbon - dioxide ($CO_2$) and water ($H_2O$) and release energy. The given equation is for photosynthesis in reverse. In cellular respiration, glucose is oxidized in the presence of oxygen.

Answer:

B. $C_6H_{12}O_6$ and $O_2$