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20 Cards in this Set

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acetyl CoA

combination of an acetyl group derived from pyruvic acid and coenzyme A, which is made from pantothenic acid (a B-group vitamin)

aerobic respiration

process in which organisms convert energy in the presence of oxygen

anaerobic

process that does not use oxygen

anaerobic

cellular respiration process in which organisms convert energy for their use in the absence of oxygen

ATP synthase

membrane-embedded protein complex that adds a phosphate to ADP with energy from protons diffusing through it, also known as F1F0 ATP synthase

chemiosmosis

process in which there is a production of adenosine triphosphate (ATP) in cellular metabolism by the involvement of a proton gradient across a membrane

citric acid cycle

series of enzyme-catalyzed chemical reactions of central importance in all living cells, also known as Krebs cycle

dephosphorylation
removal of a phosphate group from a molecule
fermentation
process of regenerating NAD+ with either an inorganic or organic compound serving as the final electron acceptor, occurs in the absence of oxygen
GLUT protein
integral membrane protein that transports glucose
glycolysis
process of breaking glucose into two three-carbon molecules with the production of ATP and NADH
isomerase
enzyme that converts a molecule into its isomer
Krebs cycle
alternate name for the citric acid cycle, named after Hans Krebs who first identified the steps in the pathway in the 1930s in pigeon flight muscles; also known as the citric acid cycle
oxidative phosphorylation
production of ATP using the process of chemiosmosis and oxygen phosphorylation addition of a high-energy phosphate to a compound, usually a metabolic intermediate, a protein, or ADP
prosthetic group
molecule bound to a protein that facilitates the function of the protein; also known as prosthetic cofactor
pyruvate
three-carbon sugar that can be decarboxylated and oxidized to make acetyl CoA, which enters the citric acid cycle under aerobic conditions; the end product of glycolysis
redox reaction
chemical reaction that consists of the coupling of an oxidation reaction and a reduction reaction
substrate-level phosphorylation
production of ATP from ADP using the excess energy from a chemical reaction and a phosphate group from a reactant
TCA cycle
alternate name for the citric acid cycle, named after the group name for citric acid, tricarboxylic acid (TCA)
ubiquinone
soluble electron transporter in the electron transport chain that connects the first or second complex to the third