But where does all of the energy to do this contraction come from? That is the difference between our two athletes. Both of their muscles use large amounts of ATP, but the sprinter needs to make ____, while the mile runner needs to make ____.
But where does all of the energy to do this contraction come from? That is the difference between our two athletes.
Both of their muscles use large amounts of ATP, but the sprinter needs to make ____, while the mile runner needs to make ____.
Our sprinter probably gets a quick burst of energy from his muscles' stores of ____, but for the rest of his sprint he will be quickly (and inefficiently) "burning" glucose without oxygen to make ATP in a process called ____. The by-product of this metabolic process is a molecule called ____, which has to be ejected from the cell or it will cause muscle "burn".
Because of this, he is mostly building up muscle fibers known as _____ (<-- two-word name), or ____ (<-- two letter abbrev.), fibers, which store a lot of reserve fuel in the form of _____
Our mile runner, however, needs to burn her fuel more efficiently. She burns glucose using oxidative, or ____,
The muscle fibers she is building up will be pink, because they store oxygen between contractions on a protein called _____. These muscle fibers are ____ (<-- two-word name), or____ (<-- two letter abbrev.), fibers.
· ATP slowly over a long time
· a lot of ATP in a hurry
· aerobic
· creatine phosphate
· fast glycolytic
· fast oxidative
· FG
· FO
· glycogen
· glycolysis
· lactic acid
· mitochondria
· myoglobin
· slow oxidative
· SO
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