IB Biology HL-B Midterm Review 100% Correct

A hydrophobic amino acid R group would be found where in a protein? - ANSWEROn the inside of the folded chain, away from water What happens when a protein denatures? - ANSWERIt hydrolyzes bonds, ionic bonds, hydrophobic interactions, disulfide bridges, and peptide bonds are disrupted What do enzymes do? - ANSWERSupply energy to start a chemical reaction In an experiment, changing the pH from 7 to 6 resulted in an increase in product formation. From this we could conclude that - ANSWERThe enzyme's active site was in a more appropriate shape to receive substrate at pH 6 A molecule that has the same shape as the substrate of an enzyme would tend to - ANSWERslow metabolism by blocking the enzyme's active site What are the special features of allosteric enzymes that are controlled by feedback inhibition by end-products? - ANSWERPosition in Metabolic Pathway: at the beginning Number of Binding Sites: 2 How does cyanide affect enzymes? - ANSWERActs as a non-competitive inhibitor and disrupts disulfide bridges If an enzyme solution is saturated with substrate, the most effective way to obtain an even faster yield of products would be - ANSWERadd more of the enzyme Some bacteria are metabolically active in hot springs because - ANSWERtheir enzymes have high optimal temperatures Draw a graph that shows the effect of substrate concentration on enzyme activity under constant enzyme concentration - ANSWER Draw a diagram that correctly displays a dipeptide - ANSWER When substrate concentration increases, in a reaction catalyzed by an enzyme, why does the rate of reaction increase? - ANSWERSubstrate molecules collide more frequently with the active site An example of a conjugated protein in the human body is - ANSWERHemoglobin For a protein to have a quaternary structure, it m