Unit 8 Flashcards
(20 cards)
Enzyme
A protein that acts as a catalyst, lowering the activation energy needed for reactions to progress in cells
A protein that acts as a catalyst, lowering the activation energy needed for reactions to progress in cells
Enzyme
Activation Energy
The minimum amount of energy needed for a chemical reaction to occur, yielding products from a given set of reactants
The minimum amount of energy needed for a chemical reaction to occur, yielding products from a given set of reactants
Activation Energy
Substrate
The reactant of the reaction that is bound by the enzyme
The reactant of the reaction that is bound by the enzyme
Substrate
Active Site
A region of the enzyme where binding to substrate occurs
A region of the enzyme where binding to substrate occurs
Active Site
EDTA
Chelator
Chelator
Makes cofactors unavailable by binding to them
Makes cofactors unavailable by binding to them
Chelator
Cofactor
Nonprotein helper that assists in a reaction
Nonprotein helper that assists in a reaction
Cofactor
Independent Variable (8.1 - The Effect of Temperature on Enzymatic Activity):
Temperature (C°)
Dependent Variable (8.1 - Effect of Temperature on Enzymatic Activity):
Amount of glucose
Denaturation
A process in which a protein loses its native shape due to the disruption of weak chemical bonds and interactions, thereby becoming biologically inactive
A process in which a protein loses its native shape due to the disruption of weak chemical bonds and interactions, thereby becoming biologically inactive.
Denaturation
Lactose Metabolism
Lactose —–> Galactose + Glucose
Lactase
Ideal pH of enzymatic activity (lactase)
4.5
Enzymatic Specificity of Lactase in the presence of Lactose vs. Maltose
Lactose: Glucose is high
Maltose: Glucose is low
