EXSC 460 Unit 2 Exam

Skeletal muscle glycogen can be used to replenish blood glucose. True False - False As exercise intensity increases, the overall contribution of fat to total energy production increases. True False - False _____ is the molecule required for entry into the Krebs cycle. acetylcholine acetylcholinesterase succinate dehydrogenase acetyl coenzyme A - acetyl coenzyme A ____ refers to the catabolism of glycogen into glucose. glycogenolysis glycolysis glucogenolysis gluconeogenesis - glycogenolysis In an individual consuming a balanced diet, approximately _____ kcals of energy are stored as carbohydrate in liver and skeletal muscle. 500 - 1000 In which of the following processes is skeletal muscle lactate transported to the liver and metabolized into glucose? Cori cycle Krebs cycle lactate shuttle tricarboxylic acid cycle - Cori cycle When a hydrogen electron is removed from a molecule it is described as being _____. reducedpolarized oxidized phosphorylated - oxidized Derivatives of which of the following micronutrients are necessary for transport of hydrogen electrons to the electron transport chain? Vitamin C iron B vitamins antioxidants - B vitamins Which of the following is the rate limiting enzyme in glycolysis? succinate dehydrogenase citrate synthase creatine kinase phosphofructokinase - phosphofructokinase One _____ is the amount of heat energy required to raise 1 gram of water 1 degree Celsius (14.5 to 15.5 degrees). Calorie Joule calorie kilocalorie - calorie The glycolytic system can provide energy to fuel maximal intensity physical activity lasting approximately _____. 30 seconds 180 seconds 15 seconds 60 seconds - 60 seconds Which of the following is the end product of glycolysis? pyruvate lactate acetyl CoA glucose 6-phosphate - pyruvate