John F. Allen

John F. Allen was a British chemist renowned for his research on the chemical processes that produce energy in cells. Along with Eugene Rabinowitch, he discovered how light energy is captured by chlorophyll in plants and used to drive the process known as photosynthesis. His work helped explain how plants convert sunlight into chemical energy, a fundamental aspect of life on Earth. Allen’s discoveries contributed significantly to our understanding of plant biology, energy conversion, and the origins of photosynthesis, shaping modern biochemistry and environmental science.