Photosynthetic efficiency refers to how effectively plants, algae, and some bacteria convert sunlight into chemical energy during the process of photosynthesis. This process involves capturing light energy and using it to transform carbon dioxide and water into glucose and oxygen. The efficiency can vary based on factors like light intensity, temperature, and the type of organism. In general, the maximum theoretical efficiency of photosynthesis is around 11%, but actual efficiency in natural conditions is often much lower, typically between 1% and 3%. Understanding photosynthetic efficiency is crucial for improving crop yields and developing sustainable energy sources, such as biofuels.