Podcast
Questions and Answers
Glycolytic fibers have a very high concentration of cytosolic ______ enzymes.
Glycolytic fibers have a very high concentration of cytosolic ______ enzymes.
glycolytic
Oxidative fibers have numerous ______ and can generate ATP easily through oxidative phosphorylation.
Oxidative fibers have numerous ______ and can generate ATP easily through oxidative phosphorylation.
mitochondria
The cells that are stained dark and have a high oxidative capacity are very ______.
The cells that are stained dark and have a high oxidative capacity are very ______.
small
______-twitch muscle cells are able to generate ATP quite rapidly through glycolysis.
______-twitch muscle cells are able to generate ATP quite rapidly through glycolysis.
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Capillaries are found in higher concentrations around the oxidative fibers because the ______ present in them require oxygen from the bloodstream.
Capillaries are found in higher concentrations around the oxidative fibers because the ______ present in them require oxygen from the bloodstream.
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Slow oxidative (Type I) muscle fibers contract ______ and primarily produce ATP aerobically.
Slow oxidative (Type I) muscle fibers contract ______ and primarily produce ATP aerobically.
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Slow oxidative muscle fibers have a high content of ______, the red pigment that carries oxygen.
Slow oxidative muscle fibers have a high content of ______, the red pigment that carries oxygen.
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Fast oxidative-glycolytic (Type IIa) muscle fibers contract ______ and use both anaerobic and aerobic metabolic processes for ATP production.
Fast oxidative-glycolytic (Type IIa) muscle fibers contract ______ and use both anaerobic and aerobic metabolic processes for ATP production.
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Fast glycolytic (Type IIb) muscle fibers rely primarily on ______ respiration for ATP production.
Fast glycolytic (Type IIb) muscle fibers rely primarily on ______ respiration for ATP production.
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Endurance runners are usually ______ because they have a lot of slow oxidative fibers.
Endurance runners are usually ______ because they have a lot of slow oxidative fibers.
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Fast glycolytic (Type llb) muscle fibers contract ______ and primarily produce ATP anaerobically, through glycolysis.
Fast glycolytic (Type llb) muscle fibers contract ______ and primarily produce ATP anaerobically, through glycolysis.
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These fibers are typically ______ due to their low myoglobin content.
These fibers are typically ______ due to their low myoglobin content.
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If you know whether ATP production is ______ or anaerobic, you can predict whether myoglobin content will be high or low.
If you know whether ATP production is ______ or anaerobic, you can predict whether myoglobin content will be high or low.
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Individual motor units possess just one of the three ______ types described above.
Individual motor units possess just one of the three ______ types described above.
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Fast ______ fibers, located in the large motor units, are not usually recruited except when the muscle must generate a sudden, large force.
Fast ______ fibers, located in the large motor units, are not usually recruited except when the muscle must generate a sudden, large force.
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______ fibers have numerous mitochondria and can generate ATP easily through oxidative phosphorylation.
______ fibers have numerous mitochondria and can generate ATP easily through oxidative phosphorylation.
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______-twitch muscle cells are able to generate ATP quite rapidly through glycolysis.
______-twitch muscle cells are able to generate ATP quite rapidly through glycolysis.
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Capillaries are found in higher concentrations around the ______ fibers because the oxygen present in them require oxygen from the bloodstream.
Capillaries are found in higher concentrations around the ______ fibers because the oxygen present in them require oxygen from the bloodstream.
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Glycolytic fibers have a very high concentration of cytosolic ______ enzymes.
Glycolytic fibers have a very high concentration of cytosolic ______ enzymes.
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The cells that are stained dark and have a high oxidative capacity are very ______.
The cells that are stained dark and have a high oxidative capacity are very ______.
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The muscles of a sprinting track runner will differ from the muscles of a marathon runner, and they will both differ from the muscles of a person who leads a ______ lifestyle.
The muscles of a sprinting track runner will differ from the muscles of a marathon runner, and they will both differ from the muscles of a person who leads a ______ lifestyle.
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Over time, fast-glycolytic (Type ______) fibers are converted to fast-oxidative-glycolytic (Type Ila) fibers.
Over time, fast-glycolytic (Type ______) fibers are converted to fast-oxidative-glycolytic (Type Ila) fibers.
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High intensity exercise over a short duration increases the ______ capacity of fibers but lowers their oxidative capacity.
High intensity exercise over a short duration increases the ______ capacity of fibers but lowers their oxidative capacity.
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Glycolytic fibers have a very high concentration of cytosolic ______ enzymes.
Glycolytic fibers have a very high concentration of cytosolic ______ enzymes.
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Oxidative fibers have numerous ______ and can generate ATP easily through oxidative phosphorylation.
Oxidative fibers have numerous ______ and can generate ATP easily through oxidative phosphorylation.
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For exams, remember that ______ training enhances the oxidative capacity of muscle fibers and reduces their chances of becoming fatigued.
For exams, remember that ______ training enhances the oxidative capacity of muscle fibers and reduces their chances of becoming fatigued.
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When studying for exams, keep in mind that ______ exercise increases the glycolytic capacity of muscle fibers but lowers their oxidative capacity.
When studying for exams, keep in mind that ______ exercise increases the glycolytic capacity of muscle fibers but lowers their oxidative capacity.
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As an exam tip, recall that the muscles of a ______ runner will have more numerous and larger mitochondria than an average person's.
As an exam tip, recall that the muscles of a ______ runner will have more numerous and larger mitochondria than an average person's.
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For exams, remember that over time, fast-glycolytic (Type ______) fibers are converted to fast-oxidative-glycolytic (Type IIa) fibers.
For exams, remember that over time, fast-glycolytic (Type ______) fibers are converted to fast-oxidative-glycolytic (Type IIa) fibers.
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When studying for exams, keep in mind that ______ fibers are typically pale due to their low myoglobin content.
When studying for exams, keep in mind that ______ fibers are typically pale due to their low myoglobin content.
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