Drag the labels onto the diagram to identify the processes and participants in energy production in skeletal muscle cells. Reset Help Pyruvate CYTOSOL ATP (glycolysis) ADP + Citric acid cycle CO2 phosphate Mitochondrion ATP (electron transport chain) Electron O2 H transport chain Glucose MATRIX Aerobic metabolism H20 Glycolysis

Drag the labels onto the diagram to identify the processes and participants in energy production in skeletal muscle cells. Reset Help Pyruvate CYTOSOL ATP (glycolysis) ADP + Citric acid cycle CO2 phosphate Mitochondrion ATP (electron transport chain) Electron O2 H transport chain Glucose MATRIX Aerobic metabolism H20 Glycolysis

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter38: The Musculoskeletal System

Section: Chapter Questions

Problem 3VCQ: Figure 38.38 The deadly nerve gas Sarin irreversibly inhibits acetycholinesterase. What effect would...

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Figure 38.38 The deadly nerve gas Sarin irreversibly inhibits acetycholinesterase. What effect would Sarin have on muscle contraction?
Muscle 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
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 Reset
The 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
In an isometric contraction, the muscle ________." shortens without a load does not change in length but increases tension is not stimulated by a motor neuron is unable form cross-bridges and fails to develop tension Which method of regenerating ATP is used in a very short duration activity, such as a 100m sprint, because it is the most rapid method of regenerating ATP?" aerobic respiration in the mitochondria glycolysis in the mitochondria anaerobic respiration in the cytoplasm (or cytosol) breaking a phosphate bond on phosphocreatine The metabolic pathway that results in the production of two net ATPs per glucose plus two pyruvic acid molecules ________. only occurs within the mitochodria is called glycolysis only occurs when there is no oxygen present is the main method of generating ATP for maximum effort activities that last 1-2 Where does overÊ95% of a skeletal muscle cell's energyÊcome from during both rest andÊmoderate exercise? creatine phosphate lactic acid anaerobic…
For the skeletal muscle, hydrolyzation of ATP: Group of answer choices At the myosin head gives rise to the generation of power stroke. At the actin G-molecule gives rise to the generation of power stroke. At the myosin head give rise to the rotation of myosin head to the "cocked back" position. At the actin G-molecule give rise to the rotation of myosin head to the "cocked back" position.
During cross bridge cycling in skeletal muscle, force is created by the power stroke of the: O actin filaments Otropomyosin molecules O myosin heads Otroponin molecules
When ATP levels return to normal after intense muscle activity, is creatine predominantly phosphorylated or unphosphorylated? Draw your answer, phosphorylated or unphosphorylated creatine. I know it would be phosphortlated, but what would the correct way to draw it?
In a healthy individual, what prevents ACh from accumulating in the NMJ and causing a sustained contraction? Briefly describe what this enzyme does. NMJ we courld target to prevent musc Fi
While Colette is researching weight lifting techniques, she finds contradictory information about the "best" way to build muscle. Which of the following statements is true of skeletal muscle? O The speed of muscle contraction is not dependent on how fast the myosin heads split ATP. O Anaerobic exercise depends on oxygen. O Slow oxidative fibers have a low myoglobin content and are used for explosive muscle movements, like sprinting. O Fast glycolytic fibers are used for actions like weightlifting, fatigue very quickly, and have very little myoglobin content.
Select ALL that could cause muscle cramping (a sustained muscle contraction) in skeletal muscle: OHyperexcitability of somatic motor neurons (secreting too much Ach) Botulism poisoning, which prevents Ach secretion from somatic motor neurons O Myasthenia Gravis, in which antibodies block Ach receptors at the motor end plate, preventing Ach from binding O Hypocalcemia, in which the calcium pumps of the sarcoplasmic reticulum are unable to keep Ca2+ inside the SR (allowing Ca2+ to leak into the cytoplasm)
ZAV : ۱۲:۵۲م سبت ۳ نیسان docs.google.com a The functions of tropomyosin in skeletal muscle include sliding on actin to produce shortening releasing Ca2+ after initiation of contraction. binding to myosin during contraction. acting as a "relaxing protein" at rest by covering up the siteswhere myosin binds to actin generating ATP, which it passes to the contractilemechanism. Which of the following is the proper progression of the levels of organization in the body? chemicals, cells, organs, tissues, body systems, whole body chemicals, cells, tissues, organs, body systems, whole body cells, chemicals, tissues, organs, whole body, body systems cells, chemicals, organs, tissues, whole body, body systems O chemicals, cells, tissues, body systems, organs, whole body working as barriers that restricts the movement of protein and other molecules from the underlying connective tissue into the epithelium Basement membrane Epithelial tissue Dermis Microvilli Back Next Never submit passwords…