Chapter 10 Sample Qs w Answers.docx - BIO-165 Chapter 10 Sample Questions 1 The site where a motor neuron and a muscle fiber meet is a A sarcoplasmic

Chapter 10 Sample Qs w Answers.docx - BIO-165 Chapter 10...

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BIO-165 Chapter 10 Sample Questions 1. The site where a motor neuron and a muscle fiber meet is a A. sarcoplasmic reticulum. B. fascia. C. neuromuscular junction. D. tropomyosin. E. sarcoplasm. 2. Troponin, myosin, tropomyosin, and actin are A. proteins in muscle fibers. B. types of neurons. C. muscles of the legs. D. layers of connective tissue surrounding a muscle. E. toxins that paralyze muscles. 3. If twitches in a muscle fiber occur in rapid succession so that there is no relaxation between twitches, the resulting sustained maximum contraction is 4. Which of the following is the correct sequence of the events below that lead to the contraction of a muscle fiber? 1. Calcium ions cause troponin and tropomyosin to uncover binding sites on thin filaments. 2. Cross-bridges of thick filaments use energy from ATP to attach to binding sites on thin filaments and pull. 3. Muscle impulse spreads over sarcolemma. 4. Nerve impulse reaches neuromuscular junction. 5. Acetylcholine is released at synapse. 6. Sarcoplasmic reticulum releases calcium ions. 5. Acetylcholine is the neurotransmitter that functions 6. Compared to skeletal muscle, smooth muscle contracts more slowly and contractions last longer. T. True F. False 7. A muscle’s loss of the ability to contract following strenuous exercise is A. summation. B. tetanus. C. rigor mortis. D. muscle fatigue. E. recruitment. 8. A nerve and the muscle fibers that it controls is a
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9. The different types of muscle tissue differ from each other by 10. Which of the following is/are true? 11. Which of the following sets of features is correct for smooth muscle? A. Involuntary control, intercalated discs, striatedB. Involuntary control, one nucleus per cell, not striatedC. Voluntary control, one nucleus per cell, not striatedD. Voluntary control, one nucleus per cell, striatedE. Voluntary control, many nuclei per cell, striated
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