bioenergetics CSCS exam Questions & Answers 100% Correct(SCORED A+)

bioenergetics - ANSWERflow of energy in a biological system conversion of macronutrients into biologically usable forms of energy catabolism - ANSWERbreakdown of large molecules into smaller molecules. Exergonic reactions anabolism - ANSWERsynthesis of larger molecules from smaller molecules Endergonic reactions Exergonic reactions - ANSWERenergy-releasing reactions that are usually catabolic endergonic reactions - ANSWERrequire energy and include anabolic processes hydrolysis - ANSWERbreakdown of one molecule of ATP to yield energy Phosphagen and glycolytic systems - ANSWERare anaerobic mechanisms that occur in the sarcoplasm of a muscle cell. Krebs cycle, electron transport chain, and other oxidative systems - ANSWERare aerobic mechanisms that occur in the mitochondria of muscle cells and require oxygen as the terminal acceptor. what macronutrient is critical during anaerobic metabolism? - ANSWERCARBOHYDRATES What is the magnitude of the contribution of each energy system dependent on? - ANSWERprimarily intensity of the activity and secondarily the duration phosphagen system - ANSWER-provides ATP for short-term, high-intensity activities(sprinting, resistance training) -it is highly active at the start of all exercise regardless of intensity. -0-6 sec. Phosphocreatine (CP or PCr) - ANSWERstored in muscle for limited amounts Glycolysis - ANSWERbreakdown of a carbohydrate-from either glycogen stored in muscle or glucose delievered in the blood-to resynthesize ATP. anaer