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24 Cards in this Set
- Front
- Back
- 3rd side (hint)
The theory that the shape of the enzyme and the substrate are altered upon binding
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induced fit
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_________ inhibitors compete with the substrate by binding reversibly with noncovalent bonds to the active site. Km increases, No change in Vmax
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Competitive
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__inhibitors bind at a site other than the active site and cannot be overcome by excess substrate and lower Vmax. Km remains same
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Noncompetitive
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Regulation of enzymes occurs by ___, ____, ____ and ______.
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proteolytic cleavage
reversible covalent modification control proteins allosteric interactions |
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When a product downstream in a rxn comes back and inhibits the enzymatic activity in an early rxn
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Negative feedback or feedback inhibition
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Where the product returns to activate the enzyme
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Positive feedback
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These properly orient reactants and lower the activation energy
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enzymes
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molecular synthesis
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anabolism
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catabolism or anabolism?
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molecular degradation
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catabolism
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series of rxns that break 6C glucose into 2 3C pyruvates
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glycolysis
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_ ATPs are spent and _ ATPs are produced
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2, 4
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This takes place when a cell cannot use energy from NADH and pyruvate or has no oxygen
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Fermentation
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T or F: Fermentation recycles NADH back to NAD+
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T
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What is produced with each turn of the Krebs cycle?
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1ATP 3NADH 1FADH2
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a series of proteins including cytochromes with heme in the inner membrane of mitochondrion
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electron transport chain
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Aerobic respiration produces _ ATPs
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36
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1 NADH brings back _ ATPs and 1FADH2 brings back approx. _ ATPs
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2-3; 2
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Innermembrane space of mitochondrion has a higher or lower pH than the matrix?
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lower
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T or F: Oxidative phosphorylation occurs along the ETC
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true
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Krebs cycle occurs in the _______
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mitochondrial matrix
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T or F: Then energy from the oxidation of NADH establishes a proton gradient between the inner membrane space and the matrix
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T
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T or F: Glycolysis occurs under anaerobic and aerobic conditions
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T
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Which is not a product or reactant of glycolysis? glucose, pyruvate, ATP or O2
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O2
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What is the net ATP from fermentation
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2
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