ATP is a limited source of energy for skeletal muscle contraction. The cell has other ways of producing ATP depending on the duration and type of exercise. Describe these other processes contributing to ATP production in a person is running on a treadmill for 30 minutes
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- Your friend wants to join you in your exercise routine, which includes running at least 3 km every morning. This form of exercise requires adequate energy. Discuss three pathways that are involved in the production of energy during muscle contractionIndicate three ways that muscle cells can generate ATPThe role of creatine phosphate in muscle cells is to: provide energy for muscles during extended physical activity (greater than 20 minutes) split glucose in two accept electrons "recharge" spent ATP in the first several seconds of a muscle contraction shuttle H atoms to the ETC
- Refer to the figure below. VI ATP II ADP II ADP ADP (P) Reference: Ref 20-2 In the figure, which panel, taken out of context, represents a state where muscle relaxation could be occurring? Select one: O a. II O b. IV О с. VIDuring muscle contraction, some energy is supplied from creatine phosphate. Which of the following events occurs during the breakdown of creatine phosphate? Question 6 options: a ATP molecules breakdown producing ADP + P groups. b ATP molecules are formed when P groups are bonded to ADP. c ADP molecules break down producing AMP + P groups. d ADP molecules are formed when P groups are bonded to AMPWhat would be the ATP yield per molecule of glucose in the muscle if glycogen were the source of the glucose?
- Classify characteristics of skeletal muscle energy metabolism by dragging each statement to its correct metabolic pathway for ATP synthesis. Allows time for the other two pathways to increase their ATP production Reaction is catalyzed by creatine kinase Blood glucose and fatty acids become fuel for this pathway after 10 minutes of exercise Lactic acid is a waste product produced by this pathway Rapid means of forming ATP during the first few seconds of muscle contraction Very rapid, requiring only a single enzymatic reaction Produces ATP used during moderate, prolonged levels of muscular activity This pathway requires oxygen Produces a significant fraction of ATP during high-intensity Produces ATP from glucose quickly in the absence of охудen Uses glycogen broken down into glucose during the first 5-10 minutes of moderate exercise Produces only small quantities of ATP for each metabolized glucose molecule exercise Oxidative Phosphorylation Creatine Phosphate Glycolysis ResetThe most common fatty acid that exists in coconut oil is a fatty acid called lauric acid. This is a 12 carbon saturated (12:0) fatty acid. How many net ATP are produced from the complete oxidation of a single molecule of lauric acid after it enters into a muscle cell? Show steps pleaseMuscle contraction involves a protein conformational change called the power stroke. Where ultimately does the energy come from that allows a series of conformational changes involved in the power stroke? O Ca2+ O ATP hydrolysis O Actin polymerization O GTP hydrolysis
- Describe the two mechanisms by which muscle glycogen is broken down to glucose (glycogenolysis) for use in glycolysis. Which one is activated at the same time as muscle contraction?Several different mechanisms are used to generate the energy needed to complete an exercise bout. Put these mechanisms in order of use. Aerobic Respiration Kreb's cycle and Electron Transport 1 Chain Anaerobic glycolysis Creatine Phosphate ATP stored in muscleFor a skeletal muscle to remain rigidly contracted, it needs a continual supply of ATP. Yet, when a skeletal muscle runs out of ATP (in a corpse), it becomes rigid. How can you explain this seeming paradox? Explain how skeletal muscle may remain relaxed even if ATP levels are high.
