The required energy of activation of a reaction (a) is fixed and cannot be altered (b) can be lowered by a specific enzyme (c) can be raised by a specific enzyme (d) b or c, depending on the enzyme (e) none of the preceding

“Induced fit” means that when a substrate binds to an enzyme’s active site, (a) it fits perfectly, like a key in a lock (b) the substrate and enzyme undergo conformational changes (c) a site other than the active site undergoes aconformational change (d) the substrate and the enzyme become irreversibly bound to each other (e) c and d

The effect of on the activity of an enzyme can usually be overcome by increasing the concentration of substrate(s). Choose the best answer the phosphorylation of the R groups of serine (S), threonine (T) and tyrosine (Y) an allosteric effector a noncompetitive inhibitor a competitive inhibitor

The enzyme -catalyzed reaction ratewill be increased if the energy level of ES can be increased by all EXCEPT: destabilization of ES by strain loss of entropy due to binding of E and S. destabilization of ES by distortion destabilization of ES by solvation destabilization of ES by electrostatic effects a. b. с. d. е.

please make sure the answer you provide is correct i submitted this question differnt times and everytime i got a differnt answer

Hb serves as our model for regulation of enzyme reaction rates. But Hb is not an enzyme. Explain the reasoning of Jacque Monod and his colleagues for invoking Hb as a "model enzyme."

Some cool enzyme (CE) catalyzes the conversion of compound F to compound A. Which of the following must be true of CE? Choice 1 of 4: CE can facilitate conversion of compound A into compound F. Choice 2 of 4: CE binds more tightly to the substrate F than to the product A. Choice 3 of 4: CE decreases the energy of the transition state between compounds F and A. Choice 4 of 4: CE facilitates net conversion of F to A whenever F is present.

Choose the best description of an enzyme: (a) It allows a chemical reaction to proceed extremely fast. (b) It increases the rate at which a chemical reaction approaches equilibrium relative to its uncatalyzed rate. (c) It makes a reaction thermodynamically favorable.

When the product of reaction \\( A \\) becomes the reactant of reaction \\( B \\), the metabolic pathway is cyclic divergent bidirectional convergent linear

A neutrophil detects a pathogen, which step would most likely happen next?     Increase in intracellular levels of Arp2/3     Decrease in intracellular levels of Arp2/3     Neutrophils do not respond to pathogens.     Decreases in capZ