In Plants and Algae, Which of the Following is a By-Product

Question

In plants and algae, which of the following is a by-product of photosynthesis? A)O2 B)CO2 C)carbohydrates D)C6H12O6 E)H⁺

Accepted Answer

Oxygen (O2) is a by-product of photosynthesis, released when water molecules are split during the light-dependent reactions.