Muscular System: Muscle Metabolism

1. advert the three roles of adenosine triphosphate in muscle contraction1. shake the power stroke of the myosin cross bridge.2. Disconnecting the myosin head from the binding site on actin at the conclusion of a power stroke.3. Energizing the calcium ion pump.2. The potential zilch in ATP is released when the terminal high-energy bond is broken by a process called hydrolysis. Write the end products of this process ATP (+ H2O) ( automatic data processing3. make ADP into ATP with a new outset of energy is carried out by a process called dehydration synthesis.Write the equation for this process ADP ( ATP (+ H2O)4. List the three processes used to synthesize additional ATP when ATP supplies are low1. Hydrolysis of creatine phosphate2. Glycolysis3. The Krebs cycle and oxidative phosphorylation5. An immediate source of energy is creatine phosphate (CP), but the supplies are limited and rapidly depleted. One mote of CP produces one ATP.6. Glucose is a major source of energy for synthe sizing ATP. List the cardinal sources of glucose1. Glucose enters the muscle cell directly from the blood.2. Glucose is produced by hydrolysis of glycogen stored in the muscle cell.7. Glycolysis is the process that breaks down glucose. Name two products of the breakdown of glucose1. Two ATP molecules2. Pyruvic acid If oxygen is not available, pyruvic acid is converted to lactic acid, which is the end product of anaerobic respiration.8. If oxygen is available, the process is known as ___aerobic_ respiration. Name two sources of oxygen1. Oxygen enters the muscle cell directly from the blood.2. Oxygen is stored in myoglobin, an oxygen-binding protein.The aerobic pathway consists of glycolysis + krebs cycle + oxidative phosphorylation. The net result of one glucose molecule is 36 ATP.9. The process of restoring depleted energy reserves after exercise is called repaying the oxygen debt. Name four processes that occur during this time1. Lactic acid is converted back to pyruvic acid, whic h enters the Krebs cycle, producing ATP.2. This ATP is used to rephosphorylate creatine into creatine phosphate.3. Glycogen is synthesized from glucose molecules.4. Additional oxygen re-builds to myoglobin.10. Put the following characteristics under the correct fiber type in the table belowKrebs cycle and oxidative phosphorylationuses glycolysis fatigue rapidlyhigh heroism few capillariesmany capillaries much myoglobinlittle myoglobin long-distance runnersprinter Krebs cycle and oxidative phosphorylation uses glycolysis fatigue rapidly high endurance few capillaries many capillaries much myoglobin little myoglobin long-distance runner sprinter light in color, large diameter red in color, small diameter.