BIO 120 Quiz 2
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16 Terms
Cellular Respiration
the process by which cells break down glucose to produce ATP, the main energy currency of the cell
What is the first step of cellular respiration?
Glycolysis
Where does Glycolysis occur?
Cytoplasm
What happens in Glycolysis?
Glucose is split into two molecules of pyruvate
Glycolysis Reactants
glucose, ATP, NAD+
Glycolysis Products
2 Pyruvate, 2 ATP (net), 2 NADH
What is the second step of cellular respiration?
Pyruvate Oxidation & Citric Acid Cycle
Where does Pyruvate Oxidation occur?
Mitochondria
What happens during pyruvate oxidation?
Each pyruvate molecule is converted into Acetyl CoA, one CO2 molecule is released from each pyruvate, NAD+ is reduced to NADH
PO Reactants
2 pyruvates, 2 NAD+, CoA
PO Products
2 Acetyl-CoA, 2 CO2, 2 NADH
Where does the Citric Acid Cycle occur?
Mitochondria
What happens in the citric acid cycle?
Acetyl-CoA enteres the cycle and goes through a series of redox reactions
CAC Reactants
2 CoA, 6 NAD+, 2 FAD, 2 ADP + 2 P
CAC Products
4 CO2, 6 NADH, 2 FADH2, 2 ATP
What is the final step of cellular respiration?
Ph