Biology: The Unity and Diversity of Life (MindTap Course List)
14th Edition
ISBN: 9781305073951
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Textbook Question
Chapter 35, Problem 13SQ
__________from a motor neuron excites a muscle fiber.
a. ACh
b. GABA
c. calcium
d. phosphate
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In sustained, moderate exercise, skeletal muscle is predominantly using ______________ as its energy source. a. amino acids b. glucagon c. fatty acids d. creatine phosphate
Muscle that has a striped appearance is described as being
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c. excitable
d. striated
Aponeuroses are extentions of connective tissue beyond muscle cells that attach the muscle to bone.
A. True
B. False
Chapter 35 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 35 - An endoskeleton consists of _________. a. a fluid...Ch. 35 - Bones are __________. a. mineral reservoirs b....Ch. 35 - Bones move when __________ muscles contract. a....Ch. 35 - A ligament connects ________. a. bones at a joint...Ch. 35 - Building Better Bones Tiffany, shown in FIGURE...Ch. 35 - Building Better Bones Tiffany, shown in FIGURE...Ch. 35 - Building Better Bones Tiffany, shown in FIGURE...Ch. 35 - Building Better Bones Tiffany, shown in FIGURE...Ch. 35 - Parathyroid hormone stimulate__________. a. bone...Ch. 35 - The ___ attaches to the pelvic girdle. a. radius...
Ch. 35 - The __________ is the basic unit of contraction....Ch. 35 - In sarcomeres, phosphate-group transfers from ATP...Ch. 35 - A sarcomere shortens when ________. a. thick...Ch. 35 - Muscle fibers produce ATP by__________. a. aerobic...Ch. 35 - Prob. 11SQCh. 35 - A motor unit is _________. a. a muscle and the...Ch. 35 - __________from a motor neuron excites a muscle...Ch. 35 - Prob. 14SQCh. 35 - Match the words with their defining feature....Ch. 35 - Continued strenuous activity can cause lactate to...Ch. 35 - After death, calcium pumps no longer function and...
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- When a higher voltage is applied to the skeletal muscle, the force of contraction _____ and recruitment of more motor units occurs called ________ summation. A. increases, spatial B. increases, temporal C. decreases, temporal D. decreases, spatialarrow_forwardThe muscle relaxes if no new nerve signal arrives. However the neurotransmitter from the previous stimulation is still present in the synapse. The activity of ________ helps to remove this neurotransmitter. a. myosin b. action potential c. tropomyosin d. acetylcholinesterasearrow_forwardIn relaxed muscle, the myosin-binding site on actin is blocked by ________. a. titin b. troponin c. myoglobin d. tropomyosinarrow_forward
- The names of the muscles can indicate all of the following, EXCEPT ___________. a.myofibril numbers of the muscle b.the direction of the muscle relative to the long axis of the body c.action of the muscle d.the region of the body where the muscle is located 2. An exocrine gland that loses small parts of its cell bodies during secretion, as is the case for the mammary gland, is further classified as a ____________ gland. a.Endocrine b.Merocrine c.Holocrine d.Apocrinearrow_forwardSmooth muscles differ from skeletal and cardiac muscles in that they ________. a. lack myofibrils b. are under voluntary control c. lack myosin d. lack actinarrow_forwardMotor units in a muscle contract _______________ and this helps _______________ fatigue. a. synchronously; prevent b. asynchronously; prevent c. synchronously; promote c. asynchronously; promote d. b and carrow_forward
- A decline in a skeletal muscle's ability to maintain a constant level of force or tension after prolonged repetitive stimulations is called A. complete tetanus B. recruitment C. fatique D. rigor mortisarrow_forwardA bacterial toxin is known to block the release of ACh at the motor end plate of skeletal muscle. Consequently, a. the skeletal muscle contracts with increasing force. b. the skeletal muscle contracts with increasing frequency. c. the ability to stimulate the muscle is impaired. d. other neurotransmitters would stimulate the muscle.arrow_forwardWhich protein is not part of the thin filament in a muscle fiber? A. Actin B. Myosin C. Tropomyosin D. Troponinarrow_forward
- The power stroke of muscle contraction occurs as the myosin head pivots toward its tail and the thin filament slides along the length of the thick filament. A. true B. falsearrow_forwardWhich of the following sentences is NOT correct? A. White fibers make up fast-twitch muscle B. Muscle spindle is a type of receptor that detects muscle length C. Exocrine gland secretes its product directly into the bloodstream D. When an action potential is generated within a motor neuron, every muscle cell of the motor unit is stimulated to contractarrow_forwardDelayed onset muscle soreness (DOMS) is most closely associated with which type of muscle action? a. Flurometic b. Isometric c. Anabolic d. Concentric e. Eccentricarrow_forward
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