Question

question 23
the major byproduct of photosynthesis is
a. co₂
b. nitrogen
c. o₂
d. water
e. water

Explanation:

Photosynthesis is the process by which plants use sunlight, carbon dioxide ($CO_2$) and water ($H_2O$) to produce glucose ($C_6H_{12}O_6$) and oxygen ($O_2$). The chemical equation for photosynthesis is $6CO_2 + 6H_2O+light
ightarrow C_6H_{12}O_6 + 6O_2$. Here, oxygen is the by - product. Carbon dioxide and water are reactants. Nitrogen is not directly involved in the basic photosynthesis reaction (in the context of the simple photosynthesis equation taught at an introductory level).

Answer:

C. $O_2$