Glycolysis and Krebs Cycle
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These flashcards cover key terms and concepts related to glycolysis and the Krebs cycle, essential components of cellular respiration.
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11 Terms
Krebs Cycle
The second step of cellular respiration, occurring in the mitochondria's matrix.
Acetyl CoA
A 2 carbon molecule made from pyruvate that enters the Krebs cycle.
Oxaloacetate
A 4 carbon molecule that combines with Acetyl CoA to form citrate.
Citrate
The 6 carbon molecule formed from Acetyl CoA and oxaloacetate in the Krebs cycle.
Electron Carriers
Molecules such as NADH and FADH2 that transport electrons to the electron transport chain.
NAD+
An electron carrier that is reduced to NADH in the Krebs cycle.
FAD
Flavin adenine dinucleotide, an electron carrier that is reduced to FADH2.
Carbon Dioxide (CO₂)
A by-product of the Krebs cycle.
Total ATP from Glycolysis
2 ATP are produced in the glycolysis step of cellular respiration.
Total ATP from Krebs Cycle
2 ATP are produced in the Krebs cycle for each glucose molecule.
Overall Respiration Equation
C6H12O₁₂ + 6O₂ → 6H₂O + 6CO₂ + 38 ATP
Note 
Flashcards (49)