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Enzymes and cellular regulation POGIL - Unit 3 Bio Flashcards

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14997573419What are digestive enzymes based in?Protein0
14997576035EnzymesCatalysts for chemical reactions in living things1
14997578097lipasedigestive enzyme that is made in the pancreas and breaks down lipids in the small intestine. - highest rxn rate in basic environment2
14997579780Pepsinedigestive enzyme that breaks down proteins in stomach. - highest rxn rate in acidic environment3
14997581687lipase digestion reactiontriglycerides --lipase--> glycerol + fatty acids4
14997585631pepsin digestion reactionlarge polypeptides --pepsin--> smaller polypeptides + amino acids5
14997595943What is the effect of exposing an enzyme to pH outside of its optimal range?- denaturation - unfolds proteins, reducing its chemical rxn efficiency and becomes useless as a catalyst.6
14997600591What pH values denature lipase?Below 4 and above 127
14997603440What pH values denature pepsin?Above 58
14997606434Enzyme structure and functionAltered enzyme structure prevents the enzyme from functioning properly - structure of enzymes are changed to tolerate different environments9
14997609133antacid effect on digesting proteinstemporarily denatures digestive enzyme10
14997610316antaciddrug that neutralizes stomach acid11
14997612467optimum temp. for amylase?35 degree C - important because this is the human body temp!12
14997618127coenzymean organic cofactor - binds to protein strands of enzyme, changing its shape so that it is ready to receive the substrate molecule. - without it, the coenzyme would not be able to attach to substrate13
14997623009inhibitorsAn agent that slows or interferes with a chemical action - reduce rxn rate by binding to protein and either blocking the spot where substrate will bind or make enzyme shape incompatible with substrate.14

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