cellular respiration
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Cellular Respiration. 7.4 Anaerobic Respiration. Anaerobic Respiration. Recall anaerobic respiration occurs in the _____________________ of _________ Two methods - - Both methods begin with __________________. Alcohol Fermentation. Starts with __________________ - PowerPoint PPT PresentationTRANSCRIPT
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7.4 Anaerobic Respiration
Cellular Respiration
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Anaerobic Respiration
• Recall anaerobic respiration occurs in the _____________________ of _________
• Two methods- -
• Both methods begin with __________________
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Alcohol Fermentation• Starts with __________________
– Glucose is metabolized to ______________________
– A net of ________ ATP is made
• During alcoholic fermentation– _____________________ is ________________
to form _____________________– ________________________ is released
– ________________ is recycled so ____________________ can continue
• ___________________ do this– Leavened bread – Sparkling wine
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Lactic Acid Fermentation• Starts with ____________– Glucose is metabolized to
______________________– Pyruvate is reduced to form
_________________________– _________________ transfers
H+ ions to ________________ regenerating NAD+
– A net of _____ ATP is made– No _____________ is released
• Muscle cells have the ___________________ to do this, but _________________ cells do not
– Muscle cells can survive _______________ periods of oxygen _________________, but brain cells cannot
– Lactic acid “_____________” in muscles
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Maximum Oxygen Uptake
• Aerobic _____________________: measure of the ability of the heart, lungs, and bloodstream to supply __________ to the cells of the _______________ during physical activity
• • A _______________________ rate at which an
individual can consume __________ during maximal __________________– –
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Exercise and VO2 max• Moving from rest to exercise _______ energy requirements• Metabolism __________________ in direct proportion to
_______________ of work• As demand for energy ______________________ so does
___________________ consumption (remember the role of oxidation to produce ATP to do work)
• VO2 eventually peaks =
• VO2 may remain _____________________ at max or drop slightly even through work _________________ continues to increase
• Average VO2 max is
• Top athletes’ VO2 max is
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Supplements and Toxins
• Creatine phosphate– donates its high energy ____________________
to the production of ____________Creatine phosphate + ADP ↔ creatine + ATP
– increase in ______________ may help to store creatine phosphate in muscle cells (creating a ____________________ of phosphate ready for ATP production)
– potentially also acts as a ___________________ in muscle cells against _____________________
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• Carbon ________________________ (CO)– combines with ________________________
preventing ________ from binding with red blood cells
– affinity between hemoglobin and CO is about ______________ times __________________ than the affinity between hemoglobin and O2
• hemoglobin will bond with _________ before it will with _______
– No oxgyen available means the __________ ______________________• Low ATP production results in cell ____________
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• Cyanide and Hydrogen Sulfide– inhibit oxygen _______________________ by
__________________________– Stopping _______________ _________________