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Unformatted text preview: dent Response D. Acetylcholine binds to post-synaptic receptors on the sarcolemma. E. Na+ moves across the sarcolemma into the muscle cell. 0% F. Breakdown of ACh by AChase. 0% G. Opening of the voltage-gated sodium channels. 0% 100% H. I. J. K. Score: Opening of potassium channels. 0% Binding of calcium ions to Troponin C. 0% Uptake of ATP by the myosin heads. 0% Attachment of actin-myosin crossbridges and swiveling of the myosin heads. 0.5/0.5 0% 20. Action potential An action potential is generated on the sarcolemma by which event of the following: Student Response Value Feedback A. Calcium ions enter the axon 0% B. Calcium ions are pumped back into the sarcoplasmic reticulum. 0% C. Acetylcholine is released into the synaptic cleft by exocytosis. 0% Student Response D. Acetylcholine binds to post-synaptic receptors on the sarcolemma. E. Na+ moves across the sarcolemma out of the muscle cell. 0% F. Opening of the chemically-gated sodium channels. 0% G. Opening of the voltage-gated sodium channels. 100% 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: 0/0.5 View Attempt 28 of unlimited Title: Alternate Substitute Quiz Started: December 7, 2008 4:42 PM Submitted: December 7, 2008 4:46 PM Time spent: 00:04:16 Total score: 10/10 = 100% Total score adjusted by 0.0 Maximum possible score: 10 1. haversian systems Spongy bone lacks: Student Response A. osteocytes B. lacunae 0% C. blood vessels Student Response D. Score: 0.5/0.5 Value 0% Feedback 0% Haversian systems 100% 2. receptive region criterion The criterion for an area being the neuron receptive region is: Student Response Value Feedback Student Response A. possessing chemically-gated ion channels B. possessing voltage-gated ion channels 0% C. having both chemically-gated and voltage-gated ion channels D. being able to propagate an action potential 0% Score: 0.5/0.5 3. myogenic The type(s) of muscle which have myogenic cells: Student Response Value Feedback A. skeletal muscle 0% B. cardiac muscle 0% C. smooth muscle 0% 100% 0% 0% D. Both 1 and 2 Student Response E. Score: 0.5/0.5 0% Both 2 and 3 100% 4. voltage-gated ion channels Threshold depolarization will result in an action potential when it occurs at: Student Response Value Feedback A. chemically-gated ion channels only 0% Student Response B. voltage-gated ion channels only 100% C. Both chemically-gated and voltage-gated ion channels. 0% D. The receptive region. 0% Score: 0.5/0.5 5. hyperpolarization Opening of the chemically-gated K+ channels would produce: Student Response Value Feedback A. depolarization 0% B. hyperpolarization 0% C. EPSP 0% D. IPSP 0% E. Both #1 and #3. 0% Student Response F. Both #2 and #4. 100% Score: 0.5/0.5 6. Hierarchy Organs are groupings composed of _____ which work together. Student Response Value Feedback A. cells 0% Student Response B. tissues 100% C. organelles 0% D. organ systems 0% E. macromolecules 0% Scor...
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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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