Which of the three methods (aerobic, anaerobic, creatine energy reserve) for energy creation in skeletal muscles is best for hiking a mountain? Please explain your answer.
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Which of the three methods (aerobic, anaerobic, creatine energy reserve) for energy creation in skeletal muscles is best for hiking a mountain? Please explain your answer.
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- You can choose one or more than one option About human skeletal muscle contraction, what are the correct statements? PHYSIOLOGY basi:. A muscle fiber is made by the parallel apposition of sarcomers. Generation of force relies on the formation of cross-bridges between actin and myosin filaments. In the process of contraction, adenosine triphosphate (ATP) is required both to drive the actin-myosin association-dissociation cycle and to recycle calcium back to the endoplasmic reticulum. Each muscle fiber is innervated by one neuron only tubules are plasma membrane imaginations of the sarcolemma that allow excitation-contraction coupling Arginase is an enzyme that : BIOCHEMISTRY advanced is expressed in the cytoplasm of hepatocytes shows two isoenzymes in mammals. found in the liver and other tissues catalyzes the formation of urea and ornithine from arginine. induces hyperammonemia when it is overexpressed is inhibited by basic amino acids such as lysine and ornithine.…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 human body has mainly two types of muscle fibres: slow-twitch and fast-twitch. The { slow or fast} twitch contract slowly and resist fatigue and produce most of their energy through { aerobic or anaerobis} rispiration. These muscle fibres are best used for activities like { weight lifting and playing tennis or biking and jogging} The { slow or fast} twitch are adapted for the rapid regeneration of power. They can best be used in activities such as { weight lifting and playing tennis or biking and jogging}. They are rich in glycogen and depend on { aerobic or anaerobis} rispiration. to produce energy. This leaves them vulnerable to the accumulation of lactate and they fatigue quickly. which one are those? the answers
- You can choose one or more than one options About human skeletal muscle contraction, what are the correct statements? PHYSIOLOGY basic A muscle fiber is made by the parallel apposition of sarcomers. Generation of force relies on the formation of cross-bridges between actin and myosin filaments. In the process of contraction, adenosine triphosphate (ATP) is required both to drive the actin-myosin association-dissociation cycle and to recycle calcium back to the endoplasmic reticulum. Each muscle fiber is innervated by one neuron only tubules are plasma membrane imaginations of the sarcolemma that allow excitation-contraction couplingIn order to study and understand muscle diseases, one needs to have a good understanding of normal muscle function. Briefly outline the process of cross-bridge cycling in muscle contraction. Be sure to highlight the role of Ca2+ and ATP/ADP in the process.Select the best answer or answers from the choices given: During muscle contraction, ATP is provided by (a) a coupled reaction of creatine phosphate with ADP, (b) aerobic respiration of glucose, and (c) anaerobic glycolysis.
- Each of the pairs of phrases below describe steps during skeletal muscie contraction. The 2nd phrase should take place after the 1st phrase. Which of the pairs of phrases is out of order? muscle cell action potential leads to neurotransmitter release motor neuron action potential leads to muscle cell action potential sarcolemma depolarization leads to an increase in cytosolic calcium rise in cytosolic calcium leads to cross bridge cycleFast oxidative glycolytic fibers in skeletal muscle are used Select one: O a. intermittently, for activities requiring more force output than the fast glycolytic fibers alone can produce. O b. constantly, for postural activities such as standing and sitting. O c. intermittently, for activities requiring more force output than the slow oxidative fibers alone can produce. O d. only for motions requiring maximum power output, such as jumping.Skeletal muscle is described as striated. What are the lighter, thinner stripes noted under the microscope? Group of answer choices troponin actin myosin dystrophin Rather than innervating individual muscle fibers, motor neurons often innervate two or more muscle fibers. The motor neuron and the muscle fibers it innervates are together called a: Group of answer choices motor unit myofibril muscle fascicle motor fascia Fast glycolytic muscle fibers allow for relatively quick ATP energy production by splitting glucose (but eventually leads to fatigue), a process described as: Group of answer choices fermentation aerobic pathway anaerobic pathway ATP reserve use
- The following list of events take place during a muscle contraction. Place the events in chronological order as they relate to a muscle contraction. Calcium is released from the sarcoplasmic reticulum. Myosin heads bind to actin. An action potential arrives at the axon terminal of a motor neuron. Calcium binds to troponin, displacing tropomyosin and exposing myosin head binding sites on actin. Myosin heads undergo power stroke and actin slides over myosin towards M line of sarcomere. Acetylcholine is released at the neuromuscular junction.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 contractionWhich of the following is NOT an expected change to lactate threshold after 6-months of aerobic training?occurs an increased running speedoccurs at an increased precentage of Vo2maxoccurs at a decreased heart rate