Student response value a calcium ions enter the axon

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Unformatted text preview: f the muscle cell. . 0% F. Opening of the chemically-gated sodium channels. 100% G. Opening of the voltage-gated sodium channels. 0% H. Opening of potassium channels. 0% I. Binding of calcium ions to Troponin C. 0% J. Uptake of ATP by the myosin heads. 0% K. Attachment of actin-myosin crossbridges and swiveling of the myosin heads. 0% Score: 0/0.66 15. Which of the following binds calcium ions: Student Response Value A. sarcoplasmic reticulum 50% B. troponin C 50% C. myosin 0% D. all of the above 0% E. 1 and 2, but not 3 100% Score: 0.66/0.66 Jump to Navigation Frame Your location: Assessments › View Attempt 2 of 2 Title: Quiz #5 - Stimulus-Contraction Coupling Started: March 24, 2008 2:44 PM Time spent: View Attempt March 24, 2008 2:42 PM Submitted: View All Submissions › 00:02:42 Total score: 10/10 = 100% 1. Total score adjusted by 0.0 Maximum possible score: 10 What event causes repolarization of the sarcolemma? Student Response Value A. Calcium ions enter the axon 0% B. Calcium ions enter the sarcoplasm from the sarcoplasmic reticulum. 0% C. Acetylcholine is released into the synaptic cleft by exocytosis. 0% D. Acetylcholine binds to post-synaptic receptors on the sarcolemma. 0% E. Na+ moves across the sarcolemma into the muscle cell. 0% F. Opening of the chemically-gated sodium channels. 0% G. Opening of the voltage-gated sodium channels. 0% H Opening of potassium channels. . 100% I. Binding of calcium ions to Troponin C. 0% J. Uptake of ATP by the myosin heads. 0% K. Attachment of actin-myosin crossbridges and swiveling of the myosin heads. 0% Score: 0.67/0.67 2. What is the next thing which happens after an impulse enters the T tubules? Student Response A. Calcium ions enter the axon B Calcium ions enter the sarcoplasm from the sarcoplasmic reticulum. . Value 0% 100% C. Acetylcholine is released into the synaptic cleft by exocytosis. 0% D. Acetylcholine binds to post-synaptic receptors on the sarcolemma. 0% E. Na+ moves across the sarcolemma into the muscle cell. 0% F. Opening of the chemically-gated sodium channels. 0% G. Opening of the voltage-gated sodium channels. 0% H. Opening of potassium channels. 0% I. Binding of calcium ions to Troponin C. 0% J. Uptake of ATP by the myosin heads. 0% K. Attachment of actin-myosin crossbridges and swiveling of the myosin heads. 0% Score: 0.67/0.67 3. What is the first thing that happens when an impulse reaches the axon terminus of a neuromuscular junction? Student Response A Calcium ions enter the axon . Value 100% B. Calcium ions enter the sarcoplasm from the sarcoplasmic reticulum. 0% C. Acetylcholine is released into the synaptic cleft by exocytosis. 0% D. Acetylcholine binds to post-synaptic receptors on the sarcolemma. 0% E. Na+ moves across the sarcolemma into the muscle cell. 0% F. Opening of the chemically-gated sodium channels. 0% G. Opening of the voltage-gated sodium channels. 0% H. Opening of potassium channels. 0% I. Binding of calcium ions to Troponin C. 0% J. Uptake of ATP by the myosin heads. 0%...
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This note was uploaded on 01/29/2013 for the course BIOL 239 taught by Professor Swan during the Fall '12 term at New Mexico.

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