What is the chemical equation for photosynthesis?

The chemical equation for photosynthesis reflects the process by which green plants, algae, and some bacteria convert light energy into chemical energy stored in glucose. The correct equation captures the overall conversion of carbon dioxide and water into glucose and oxygen, which is fundamental to understanding how these organisms produce their own food while simultaneously releasing oxygen as a byproduct.

In the equation, six molecules of carbon dioxide react with six molecules of water, utilizing light energy (commonly from sunlight) to produce one molecule of glucose (C6H12O6) and six molecules of oxygen (O2). This process occurs predominantly in the chloroplasts of plant cells during the presence of light, effectively allowing plants to harness solar energy for growth and energy storage.

The other options provided do not accurately depict photosynthesis. For example, one option represents cellular respiration rather than photosynthesis by converting glucose and oxygen into carbon dioxide and water, highlighting the process of energy release rather than energy capture. Understanding the specific reactants and products in photosynthesis is crucial for recognizing its role in ecosystems as it not only serves as the primary source of organic matter for nearly all organisms but also contributes to atmospheric oxygen.