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A. Toadfish Fibers, 16°C Force [Free Calcium] 0.0 0.2 0.4 r 0.6 Tim Toadfish are fish that can produce croaking noises using skeletal muscles that contract rapidly, called "sonic muscles". The figure above is plotting two parameters (force and concentration of free calcium in the sarcoplasm) of three different types of muscle cells in the toad fish (s=sonic muscle, w=white muscle, r=red muscle) during the first 0.6 seconds (x axis is time in seconds). From the graph above, what can you conclude about the ultra-fast contraction speed of toadfish sonic muscles? The quicker contraction of toadfish sonic muscle than red or white muscle can be completely explained by the quicker release and reuptake of free calcium in sonic muscle cells. Contraction in the toadfish sonic muscle is initiated more quickly than in white or red muscle cells by the quicker movement of tropomyosin away from myosin binding sites on actin. Contraction in the toadfish sonic muscle cell is stopped more quickly than in white or red muscle cells by the quicker replacement of tropomyosin over myosin binding sites on actin. Contraction in the toadfish sonic muscle is initiated more quickly than in white or red muscle cells by the quicker influx of calcium into the sarcoplasm. Contraction in the toadfish sonic muscle cell is stopped more quickly than in white or red muscle cells by the quicker removal of calcium from the sarcoplasm.

A. Toadfish Fibers, 16°C Force [Free Calcium] 0.0 0.2 0.4 r 0.6 Tim Toadfish are fish that can produce croaking noises using skeletal muscles that contract rapidly, called "sonic muscles". The figure above is plotting two parameters (force and concentration of free calcium in the sarcoplasm) of three different types of muscle cells in the toad fish (s=sonic muscle, w=white muscle, r=red muscle) during the first 0.6 seconds (x axis is time in seconds). From the graph above, what can you conclude about the ultra-fast contraction speed of toadfish sonic muscles? The quicker contraction of toadfish sonic muscle than red or white muscle can be completely explained by the quicker release and reuptake of free calcium in sonic muscle cells. Contraction in the toadfish sonic muscle is initiated more quickly than in white or red muscle cells by the quicker movement of tropomyosin away from myosin binding sites on actin. Contraction in the toadfish sonic muscle cell is stopped more quickly than in white or red muscle cells by the quicker replacement of tropomyosin over myosin binding sites on actin. Contraction in the toadfish sonic muscle is initiated more quickly than in white or red muscle cells by the quicker influx of calcium into the sarcoplasm. Contraction in the toadfish sonic muscle cell is stopped more quickly than in white or red muscle cells by the quicker removal of calcium from the sarcoplasm.

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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Please help in answering this question on toadfish physiology - more than one answer may be correct.

A. Toadfish Fibers, 16°C Force [Free Calcium] 0.0 0.2 W 0.4 r 0.6 Tim Toadfish are fish that can produce croaking noises using skeletal muscles that contract rapidly, called "sonic muscles". The figure above is plotting two parameters (force and concentration of free calcium in the sarcoplasm) of three different types of muscle cells in the toad fish (s=sonic muscle, w=white muscle, r=red muscle) during the first 0.6 seconds (x axis is time in seconds). From the graph above, what can you conclude about the ultra-fast contraction speed of toadfish sonic muscles? The quicker contraction of toadfish sonic muscle than red or white muscle can be completely explained by the quicker release and reuptake of free calcium in sonic muscle cells. Contraction in the toadfish sonic muscle is initiated more quickly than in white or red muscle cells by the quicker movement of tropomyosin away from myosin binding sites on actin. Contraction in the toadfish sonic muscle cell is stopped more quickly than in white or red muscle cells by the quicker replacement of tropomyosin over myosin binding sites on actin. Contraction in the toadfish sonic muscle is initiated more quickly than in white or red muscle cells by the quicker influx of calcium into the sarcoplasm. Contraction in the toadfish sonic muscle cell is stopped more quickly than in white or red muscle cells by the quicker removal of calcium from the sarcoplasm.
Transcribed Image Text:A. Toadfish Fibers, 16°C Force [Free Calcium] 0.0 0.2 W 0.4 r 0.6 Tim Toadfish are fish that can produce croaking noises using skeletal muscles that contract rapidly, called "sonic muscles". The figure above is plotting two parameters (force and concentration of free calcium in the sarcoplasm) of three different types of muscle cells in the toad fish (s=sonic muscle, w=white muscle, r=red muscle) during the first 0.6 seconds (x axis is time in seconds). From the graph above, what can you conclude about the ultra-fast contraction speed of toadfish sonic muscles? The quicker contraction of toadfish sonic muscle than red or white muscle can be completely explained by the quicker release and reuptake of free calcium in sonic muscle cells. Contraction in the toadfish sonic muscle is initiated more quickly than in white or red muscle cells by the quicker movement of tropomyosin away from myosin binding sites on actin. Contraction in the toadfish sonic muscle cell is stopped more quickly than in white or red muscle cells by the quicker replacement of tropomyosin over myosin binding sites on actin. Contraction in the toadfish sonic muscle is initiated more quickly than in white or red muscle cells by the quicker influx of calcium into the sarcoplasm. Contraction in the toadfish sonic muscle cell is stopped more quickly than in white or red muscle cells by the quicker removal of calcium from the sarcoplasm.
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