Do plants need oxygen to incorporate into organic compounds?

Plants do not directly use oxygen to incorporate into organic compounds; rather, they primarily use carbon dioxide during photosynthesis to synthesize organic molecules like glucose. However, oxygen is a byproduct of photosynthesis, produced when water molecules are split to release electrons. Additionally, plants do require oxygen for respiration, which occurs in their mitochondria, allowing them to convert stored energy in organic compounds into usable energy.