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17 Cards in this Set
- Front
- Back
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What are the 2 metabolic pathways a cell can use and what determines which pathway is used?
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aerobic respiration- with oxygen
anaerobic respiration- no oxygen |
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What are the 3 phases of the cellular respiration process?
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-glycolysis
-citric acid cycle -electron transport chain |
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Where in the cell does glycolysis occur?
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cytoplasm
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Where in the cell does the citric acid cycle occur?
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mitochondria
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Where in the cell does the electron transport chain occur?
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mitochondria
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How many ATP are made in glycolysis?
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2
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How many ATP are made in the citric acid cycle?
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2
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How many ATP are made in the electron transport chain?
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32
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What is ATP?
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energy
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Glycolysis
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a series of chemical reactions in the cytoplasm of a cell that break down glucose into 2 molecules of pyruvic acid
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Citric Acid Cycle
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a series of chemical reactions that the molecule used in the first reaction is also one of the end products
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Citric acid
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the 2 carbon compound Acetyl- CoA reacts with a 4 carbon compound called oxaloacetic acid to form citric acid
4+2=6 |
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Formation of CO2
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a molecule of CO2 is produced and in the process, NADH and H+ are produced
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Formation of the second CO2
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another molecule of CO2 is released, forming a four carbon compound. One molecule of ATP and a molecule of NADH + H+ are also produced
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Recycling of Oxaloacetic acid
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the four carbon molecule goes through a series of reactions in which FADH2 , NADH, and H+ are formed. The carbon chain is rearranged, and oxaloacetic acid is again made available for the cycle.
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What happens in the electron transport chain?
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the carrier molecules NADH and FADH2 give up electrons that pass through a series of reactions. Oxygen is the final electron acceptor.
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Lactic acid fermentation
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supplies energy when oxygen is scarce
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