Chapter 7 - CR (part 2- pyruvate Oxidation and krebs cycle/citric acid cycle)

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9 Terms

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Pyruvate Oxidation (Transition Step)

pyruvate enters mitochondria and is converted into Acetyl-CoA before the Krebs/Citric Acid Cycle.

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Acetyl-CoA

molecule that enters the Krebs/Citric Acid Cycle

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Where does the Krebs/Citric Acid Cycle take place?

Mitochondrial matrix.

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Krebs Cycle / Citric Acid Cycle

second stage of cellular respiration that completes the breakdown of glucose + makes CO₂, NADH, FADH₂, and small ATP.

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NADH

electron carrier produced during glycolysis, transition step, and Krebs/Citric Acid Cycle.

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FADH₂

electron carrier (similar to NADH) formed in Krebs/Citric Acid Cycle.

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Waste product of the Krebs/Citric Acid Cycle?

Carbon dioxide (CO₂).

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What is the main purpose of Krebs/Citric Acid Cycle?

to load NADH and FADH₂ with high-energy electrons to send to the ETC

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How much ATP is made directly in Krebs Cycle?

only 2 ATP (small amount)