What is energy coupling?

Energy coupling is a process in biology where the energy released from one chemical reaction is used to drive another reaction that requires energy input. This coupling of reactions allows cells to efficiently transfer and transform energy to power various cellular processes.

In cells, most energy coupling processes involve the molecule adenosine triphosphate (ATP), which serves as the primary energy currency. ATP is synthesized during cellular respiration or photosynthesis and then broken down to release energy for cellular work.

Energy coupling plays a crucial role in various cellular processes such as active transport, muscle contraction, and cellular respiration. By coupling energy-releasing reactions with energy-consuming reactions, cells can ensure efficient use of energy and maintain cellular functions.

Overall, energy coupling is essential for the survival and function of cells by facilitating the transfer and utilization of energy in biological systems.