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HB 2.2
glossary flashcards
17
Biology
Not Applicable
09/09/2026

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Term
Acetyl CoA
Definition
Produced by breakdown of pyruvate; joins with oxaloacetate in the citric acid cycle to form citrate
Term
ATP
Definition
Molecule used for energy transfer in cells
Term
ATP Synthase
Definition
Inner membrane protein that produces ATP in the mitochondria
Term
Aerobic Respiration
Definition
Process that releases energy from respiratory substrates
Term
Citrate
Definition
Citric acid - first substance produced in the citric acid cycle
Term
Coenzyme A
Definition
Substance that carries an acetyl group into the citric acid cycle
Term
Dehydrogenase
Definition
Enzyme which removes hydrogen (ions and electrons) and pass them to the coenzyme NAD forming NADH. Important in both glycolysis and the citric acid cycle
Term
Electron Transport Chain
Definition
Group of proteins embedded in the inner mitochondrial membrane
Term
Ethanol and Carbon Dioxide
Definition
The products of fermentation in plant and yeast cells
Term
Fermentation
Definition
Progression of pyruvate in the absence of oxygen. Reversible in animal cells, irreversible in plants and yeast
Term
Intermediate
Definition
Substance in a metabolic pathway between the original substrate and the end product
Term
Lactate
Definition
Produced by fermentation in animal cells.
Term
NAD
Definition
Hydrogen carrier important in glycolysis and the citric acid cycle
Term
Oxaloacetate
Definition
Substance that combines with the acetyl group in the citric acid cycle to form citrate
Term
Pi
Definition
Inorganic phosphate used to phosphorylate ADP
Term
Phosphorylation
Definition
Addition of phosphate to a substance
Term
Pyruvate
Definition
End product of glycolysis
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