10 Questions
Skeletal muscle fibers are classified into three main types: (1) Slow ______ fibers.
oxidative
Fibers appear ______ red due to the presence of myoglobin.
dark
The ATPase in the myosin heads hydrolyzes ATP relatively ______ in slow oxidative fibers.
slowly
Fast oxidative-glycolytic fibers generate ATP by ______ cellular respiration and anaerobic glycolysis.
aerobic
Slow oxidative fibers are very resistant to ______ and are capable of prolonged contractions.
fatigue
Slow oxidative fibers contain large amounts of ______ and many blood capillaries.
myoglobin
Fast glycolytic fibers are the most ______ type of muscle fibers.
powerful
Slow oxidative fibers generate ATP mainly by ______ cellular respiration.
aerobic
Fast oxidative-glycolytic fibers have a ______ speed of contraction.
fast
Slow oxidative fibers have many ______ mitochondria.
large
Learn about the process of aerobic cellular respiration, its efficiency, and sources of oxygen in muscle tissue. This quiz covers the yield of ATP from glucose and fatty acid molecules.
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