Chapter 6 - 1.) Purified actin and myosin were added to...

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1.) Purified actin and myosin were added to solution and viscosity increased. ATP was added and it decreased the viscosity. Explain oxidation A. Mysosin binds to and spontaneously dissociates from act filaments over time B. My spontaneously binds to act and ATP addition causes myosin and actin to dissociate C. Myosin spontaneously binds to actin and ATP addition causes actin to depolymerize D. Myosin binds act, increasing the viscosity ATP then binds to actin causing act and myosin to dissociate there by decreasing the viscosity. ATP does not bind to actin, it binds to myosin. 2.) Why do muscle fibers stretched beyond a certain point lose their ability to contract? A. ATP no long available B. The separation of Z-lines tears the thick filaments in half C. The thick and thin filaments no longer overlap D. overstretched muscles do not lose their ability to contract 3.) Rigor mortis occurs when. A. there is no more ATP to attach myosin actin
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Chapter 6 - 1.) Purified actin and myosin were added to...

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