Biology

Biology, 14.07.2019 04:00, niceguy1997

Arrange the steps in the correct order to explain how a muscle fiber contracts. myosin and actin protein filaments attach to each other. calcium ions release into the myofibrils. myosin filaments pull on the actin filaments. the nerve impulse reaches the neuromuscular junction. the motor neuron carries the nerve impulse. the sarcomere shortens. ↓ ↓ ↓ ↓ ↓

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Biology, 14.07.2019 11:00, izzyp619

Arrange the steps in the correct order to explain how a muscle fiber contracts. myosin and actin protein filaments attach to each other. calcium ions release into the myofibrils. myosin filaments pull on the actin filaments. the nerve impulse reaches the neuromuscular junction. the motor neuron carries the nerve impulse. the sarcomere shortens.

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Biology, 30.08.2019 20:30, joaopetter21251

The following are required steps in the sliding filament theory of muscle contraction: calcium ions bind to troponin. tropomyosin moves. calcium pumps of the sarcoplasmic reticulum open. myosin heads bend to attach to actin filaments. what would be the correct order of the steps above? 1, 4, 3, 2 1, 2, 3, 4 3, 1, 2, 4 3, 2, 1, 4 i picked c (3, 1, 2, 4)

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Health, 17.09.2019 12:30, kswaggish101

Astudent simulates muscle contraction in a model using the following order of events: calcium pumps of the sarcoplasmic reticulum open. tropomyosin moves. calcium ions bind to troponin. myosin heads bend to attach to actin filaments. based on the order of steps in the student's model, will the muscle successfully contract?

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Biology, 19.10.2019 13:20, destinyd10189

Which of the following is correct about a muscle contraction? atp causes fascicles to contract muscle fibers. myofibrils attach to z lines. myosin heads attach to sites on actin filaments. sarcomeres produce actin and myosin.

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