Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Chapter 38, Problem 3VCQ
Figure 38.38 The deadly nerve gas Sarin irreversibly inhibits acetycholinesterase. What effect would Sarin have on muscle contraction?
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Chapter 38 Solutions
Biology 2e
Ch. 38 - Figure 38.19 Which of the following statements...Ch. 38 - Figure 38.37 Which of the following statements...Ch. 38 - Figure 38.38 The deadly nerve gas Sarin...Ch. 38 - The forearm consists of the radius and ulna radius...Ch. 38 - The pectoral girdle consists of the: clavicle and...Ch. 38 - All of the following are groups of vertebrae...Ch. 38 - Which of these is a facial bone? frontal occipital...Ch. 38 - Which of the following is not a true statement...Ch. 38 - The Haversian canal: is arranged as rods or plates...Ch. 38 - The epiphyseal plate: is arranged as rods or...
Ch. 38 - The cells responsible for bone resorption are...Ch. 38 - Compact bone is composed of trabeculae compacted...Ch. 38 - Osteoporosis is a condition where bones become...Ch. 38 - While assembling a skeleton of a new species, a...Ch. 38 - Synchondroses and symphyses are synovial joints...Ch. 38 - The movement of bone away from the midline of the...Ch. 38 - Which of the following is not a characteristic of...Ch. 38 - The elbow is an example of which type of joint?...Ch. 38 - A high ankle sprain iis an injury caused by over...Ch. 38 - In relaxed muscle, the myosin-binding site on...Ch. 38 - The cell membrane of a muscle fiber is called a...Ch. 38 - The muscle relaxes if no new nerve signal arrives....Ch. 38 - The ability of a muscle to generate tension...Ch. 38 - Botulinum toxin causes flaccid paralysis of the...Ch. 38 - What are the major differences between the male...Ch. 38 - What are the major differences between the pelvic...Ch. 38 - Both hydrostatic and exoskeletons can protect...Ch. 38 - Scoliosis is a medical condition where the spine...Ch. 38 - What are the major differences between spongy bone...Ch. 38 - What are the roles of osteoblasts, osteocytes, and...Ch. 38 - Thalidomide was a morning sickness drug given to...Ch. 38 - What movements occur at the hip joint and knees as...Ch. 38 - What movements) occur(s) at the scapulae when you...Ch. 38 - Describe the joints and motions involved in taking...Ch. 38 - How would muscle contractions be affected if ATP...Ch. 38 - What factors contribute to the amount of tension...Ch. 38 - What effect will low blood calcium have on...Ch. 38 - Skeletal muscles can only produce a mechanical...
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- Why do you think a person is able to perform anaerobic exercise (such as lifting and holding a heavy weight) only briefly but can sustain aerobic exercise (such as walking or swimming) for long periods? (Hint: Muscles have limited energy stores.)arrow_forwardFigure 38.37 Which of the following statements about muscle contraction is true? The power stroke occurs when ATP is hydrolyzed to ADP and phosphate. The power stroke occurs when ADP and phosphate dissociate from the myosin head. The power stroke occurs when ADP and phosphate dissociate from the actin active site. The power stroke occurs when Ca2+ binds the calcium head.arrow_forwardThe _____ is the basic unit of muscle contraction. a. myofibril b. sarcomere c. muscle fiber d. myosin filamentarrow_forward
- Skeletal muscle contraction requires _________. a. calcium ions b. ATP c. arrival of a nerve impulse d. all of the abovearrow_forwardYou are a brilliant (but evil) biochemist who is developing a toxin that can be used to paralyze skeletal muscle. Using your knowledge of how muscle contraction happens at the cellular and molecular levels, identify two steps in the sequence of events necessary for the contraction that could be disrupted to cause paralysis, and explain why each disruption would prevent muscle contraction.arrow_forwardSkeletal muscle cells have the ability to do all of the following EXCEPT _____. activating other muscle cells to contract producing force while shortening responding to chemicals released by nerve cells rebounding to their former length after being stretchedarrow_forward
- Based on what you know about the neuromuscular junction and muscle contraction, describe very specifically how Botox injections cause localized muscle weakness/paralysis.arrow_forwardWhich of the following conditions leads to production of lactate in the muscle? (Select all that apply) Group of answer choices ↑NADH ↑ATP ↑O2 ↑AMParrow_forwardYou know from experience that skeletal muscle tires quite quickly, especially if there is not enough oxygen. Interestingly, shellfish such as clams can maintain a month-long contraction in the muscle that keeps the shell closed. No oxygen gets in this situation. These muscles have a different version of myosin called paramyosin. Knowing what you know about the cellular mechanism of muscle contraction, propose a hypothesis to explain how paramyosin might work.arrow_forward
- The 2 main proteins in muscle cells are _______ and ___arrow_forwardThis thick filament motor protein composed of 6 polypeptide chains uses ATP hydrolysis to interact creating a powerstroke for skeletal muscle contractions. A Myosin B Actin C Titin D Tropomyosinarrow_forwardCalcium ions are responsible for unmasking of active site on which protein for cross bridge activity during muscle contraction? 1.Troponin 2.Tropomyosin 3.Myosin 4.Actinarrow_forward
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