51) The most important factor in decreasing the intracellular concentration of calcium ion after contraction is A) active transport of calcium across the sarcolemma. B) active transport of calcium into the sarcoplasmic reticulum. C) active transport of calcium into the synaptic cleft. D) diffusion of calcium out of the cell. E) diffusion of calcium into the sarcoplasmic reticulum. Answer: BLearning Outcome: 10-4Bloom's Taxonomy: Knowledge52) Which of the following acts as an ATPase during the contraction cycle of muscle? 53) When calcium ion binds to troponin,
54) Which of the following become connected by myosin cross-bridges during muscle contraction?55) After death, muscle fibers run out of ATP and calcium begins to leak from the sarcoplasmic reticulum into the sarcoplasm. This results in a condition known as A) tetany. B) treppe. C) depolarization. D) rigor mortis. E) oxygen debt. Answer: DLearning Outcome: 10-4Bloom's Taxonomy: Comprehension56) In rigor mortis57) In a sarcomere, cross-bridge attachment occurs specifically in the
58) Physical evidence that supports the sliding filament theory of muscle contraction includes
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