Bio Lab Test God Help Me
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15 Terms
Enzyme
Protein that speeds up chemical reactions.
Activation Energy
Energy needed to start a reaction.
Substrate
Reactant an enzyme acts on.
Product
Substance formed after the reaction.
Active Site
Area on enzyme where substrate binds.
Lactase Function
Breaks lactose → glucose + galactose.
Substrate of Lactase
Lactose
Products of Lactase Reaction
Glucose and galactose.
Temperature Effect
Higher temp = faster reaction (up to optimal); too high = enzyme denatures.
Independent Variable
Factor you change.
Dependent Variable
What you measure.
Control Variables
Things kept constant.
pH Effect on Lactase
Works best at optimal pH; too high/low = reduced activity or denatured enzyme.
Enzyme Specificity
Enzymes only work on specific substrates.
Why Lactase Doesn’t Work on Maltose
Maltose doesn’t fit lactase’s active site.
