25.The large muscle protein that essentially "anchors" the thin-filaments to the cellDuring membrane and extracellular matrix and is also the muscle protein that plays a rolebelieve in the disease known as, muscular dystrophy, is:elutar Caldum caused by sweating.ocellular Pocasium and incresse in intracellular ADP caused by theThe A. actin0. Th B. myosinact C. dystrophin le fibersC The D. tropomyosinized temperatireA.muscie foers

The myofibrils are built from three kinds of proteins : Contractile proteins : They generate force…

The large muscle protein that essentially "anchors" the thin-filaments to the cell membrane and extracellular matrix and is also the muscle protein that plays a role in the disease known as, muscular dystrophy, is: raceliutar Caldum caused by sweating. cellular Pocassium and incresse in intraceliular ADP caused by the A. actin B. myosin C. dystrophin e fibers. D. tropomyosinzed temperatrg t nacvemuscle fibers

The large muscle protein that essentially "anchors" the thin-filaments to the cell membrane and extracellular matrix and is also the muscle protein that plays a role in the disease known as, muscular dystrophy, is: raceliutar Caldum caused by sweating. cellular Pocassium and incresse in intraceliular ADP caused by the A. actin B. myosin C. dystrophin e fibers. D. tropomyosinzed temperatrg t nacvemuscle fibers

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Similar questions

Dark areas called _____ made of proteins are where actin filaments attach within a myofibril. A. Z lines B. A bands C.T tubules D. I bands
In what type of muscle would the structure illustrated in the image at right be found? A. The flight muscle of a bumblebee B. The longitudinal muscles underlying the cuticle in C. elegans C. The longitudinal muscles of the vertebrate intestine D. The cardiac muscle of mammals E. None of the above actin filament Dense body Relaxed myosin filament Contracted
An ion that is essential for muscle contraction is Ca2+. Which of the following statements about the calcium ion and muscle contractions is TRUE? Select one: a. Muscle contractions can occur whether Ca2+ concentrations are high or low. b. Ca2+ binds to the tropin-tropomyosin protein complex shifting it out of the way and allows the myosin to bind to the actin so contraction can occur. c. When Ca2+ concentrations are high, tropomyosin inhibits myosin binding and the muscle is relaxed. d. Ca2+ ions are stored in the sacroplasmic reticulum during the muscle contractions. i do not knwo which one is the answer
Match the ATP duty of myosin to its description ATP binding ATP hydrolysis Pi release ADP release A. myosin releases actin, cross-bridge dissociation, step in cycle that is interrupted at death, the molecular basis of rigor mortis B. conformation change causing power stroke C. cocking of the motor domain, high-energy conformation D. binding of myosin to actin, improved by drug which led to increased cardiac output
Cardiomyocytes differ from skeletal muscle cells in that cardiomyocytes ______. A "do not have actin, myosin, or Z-disk " B do not have their actin and myosin arranged into sarcomeres and myofibrils C cannot have action potentials at a high enough frequency for tetani to occur D have fewer mitochondria and are more reliant on anaerobic respiration E All of the above are true of heart muscle cells
When a muscle hypertrophies what happens on the cellular level: Select one: a. Myosin and actin increase in number b. Sarcomeres increase in size c. Muscle fibers increase in number d. All of the above
Which of the following statements relating to the developmental aspects of muscles is false? a. All muscle tissue types arise from myoblasts b. Skeletal muscles become amitotic while smooth muscles regenerate throughout life c. Sarcopenia begins by age 30 and is irreversible d. Body strength per unit muscle mass is the same in both sexes e. none of the above Which of the following structures is located in the head region of the thick filament myosin? a. actin binding site b. ATP binding site c. ATPase enzyme d. all of the above e. none of the above
During sarcomere contraction, _________ first has to bind to ________ Select one: a. Calcium, troponin b. Calcium, microfilaments c. Sodium, troponin d. Sodium tropomysin e. Potassium, microfilaments
Answer is not c
Which of the following happens last in the sliding filament theory? A. Tropomyosin Shifts B. Calcium binds to troponin C. Myosin binds to actin D. Myosin heads undergo the powerstroke