AP BIOLOGY

Detailed explanation-1: -Respiration involves the breakdown of complex food materials into simpler molecules. Hence it is a catabolic process. It is accompanied by the release of chemical energy (ATP), so it’s an exergonic process also.

Detailed explanation-2: -Answer and Explanation: Cellular respiration is an exergonic process as it releases energy by the end of its reaction. In cellular respiration, complex molecules are broken down into simpler molecules by breaking weak bonds and converting them into ATP.

Detailed explanation-3: -The events of cellular respiration up to this point are exergonic reactions – they are releasing energy that had been stored in the bonds of the glucose molecule. This energy will be transferred to the third and final stage of cellular respiration: the Electron Transport System, which is an endergonic reaction .

Detailed explanation-4: -Catabolism refers to the exergonic process by which energy released by the breakdown of organic compounds such as glucose can be used to synthesize ATP, the form of energy required to do cellular work.

Detailed explanation-5: -Exergonic reaction: reaction releases energy • Endergonic reaction: reaction requires energy • Coupled bioenergetic reactions: the energy released by the exergonic reaction is used to power the endergonic reaction. Energy transfer from one metabolic pathway to another by means of ATP.