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15 Nov 2019
Version 1 28) Koshland's induced fit model improves over Fischer's lock-and-key model in what ways... a) allows for flexibility of both enzyme and substrate b) allows for ability of enzymes to operate on similar c) it doesn't. Fischer's model is perfect the way it is. d) (a) and (b) substrates w enzymes accelerate reactions by lowering the activation energy of the transition ae to the relative affinity of the enzyme towards free substrate versus the transition 29) In class, we discussed ho state? a) higher affinity for free substrate b) higher affinity for transition state Questions 30 and 31: Refer to the kinetic plot on the right to answer the following questions... 120 30) How would you expect the rate to change if we halved the substrate concentration from 0.8 80 mM to 0.4 mM? a) changes proportionally; saturating region 40 b) changes proportionally; linear region c) stays essentially same; saturating region d) stays essentially same; linear region 10 20 30 40 31) How will KM change if we double the concentration of enzyme? s] (mM) a) increases by factor of 2 (doubles) b) decreases by factor of 2 (halves) c) no effect
Version 1 28) Koshland's induced fit model improves over Fischer's lock-and-key model in what ways... a) allows for flexibility of both enzyme and substrate b) allows for ability of enzymes to operate on similar c) it doesn't. Fischer's model is perfect the way it is. d) (a) and (b) substrates w enzymes accelerate reactions by lowering the activation energy of the transition ae to the relative affinity of the enzyme towards free substrate versus the transition 29) In class, we discussed ho state? a) higher affinity for free substrate b) higher affinity for transition state Questions 30 and 31: Refer to the kinetic plot on the right to answer the following questions... 120 30) How would you expect the rate to change if we halved the substrate concentration from 0.8 80 mM to 0.4 mM? a) changes proportionally; saturating region 40 b) changes proportionally; linear region c) stays essentially same; saturating region d) stays essentially same; linear region 10 20 30 40 31) How will KM change if we double the concentration of enzyme? s] (mM) a) increases by factor of 2 (doubles) b) decreases by factor of 2 (halves) c) no effect
Irving HeathcoteLv2
22 May 2019