What are the steps for an enzyme to create a product in order: The energy of activation is lowered so the reaction can happen quicker. Substrate attaches to the active site. The product is created and released from the active site. The energy of activation is lowered so the reaction can happen slower. A specific substrate attaches to the active site

What are the steps for an enzyme to create a product in order: The energy of activation is lowered so the reaction can happen quicker. Substrate attaches to the active site. The product is created and released from the active site. The energy of activation is lowered so the reaction can happen slower. A specific substrate attaches to the active site

Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter3: Cells And How They Work

Section: Chapter Questions

Problem 8SQ: Enzymes _______. a. enhance reaction rates b. are affected by pH c. act on specific substrates d....

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All of the following are characteristics of the active site of an enzyme EXCEPT? Select the correct response. It has a complementary shape to its substrate. It is the binding site for many different kinds of molecules. It is found somewhere in the interior of the enzyme. It has less water content compared to the cytoplasm.
All of the following are characteristics of the active site of an enzyme EXCEPT? It has less water content compared to the cytoplasm. It is found somewhere in the interior of the enzyme. It is the binding site for many different kinds of molecules. It has a complementary shape to its substrate.
An inhibitor was added to an enzyme and the expected rate of the reaction was not detected and the substrate was not utilized at all. This inhibitor is (choose one answer only): Is un-competitive, meaning the inhibitor binds to a site near the active site. Is competitive, meaning the inhibitor binds directly to the same active site as the subtrate. Is non-competitive, meaning the inhibitor binds to site other than the active site as the subtrate. Is irreversible, meaning the inhibitor binds covalently to the enzyme keeping the enzyme inactive permanently.
When the enzyme hexokinase binds to glucose and ATP it undergoes a conformational change. All of the following are true about this enzyme-substrate binding EXCEPT: The active site changes shape so that it binds more tightly to the substrates The substrates are optimally positioned for the reaction to occur The substrates become contorted or strained, which increases their reactivity The activation energy of the reaction increases
Indicate whether each of the following statements about an enzyme active site is true or false. It is the location where substrate molecules are produced. It always has a fixed, rigid geometry. It always has a geometrical shape exactly complementary to that of substrate. It always accommodates several structurally related substrates. It is the location where substrate molecules are converted to product molecules. It always has a shape that has a degree of flexibility to it. It always accommodates only one specific substrate.
Which of the following describe what enzymes such as Chymotrysin accomplish to allow products to form and be released by the enzyme active site? Group of answer choices catalyze chemical eactions that are thermodynamically unfavorable to occur establish a more stable transition state at a higher energy level to perform a catalysis reaction redce the chemical energy held within a chemical bond modify chemical structure of a substrate to "fit" within the active site
Which of the following will occur if there is an increase in enzyme or substrate concentration? interfere with the reaction. increase the rate of reaction. decrease the rate of reaction. not change the rate of product produced reduce the rate of product produced.
Enzymes catalyze the rapid formation of product by: lowering the Gibbs free energy of the product raising the Gibbs free energy of the substrate lowering the activation energy between the substrate and the product raising the activation energy between the substrate and the product changing the AG (the change in Gibbs free energy) of the reaction
As the amount of substrate is increased in an enzyme-substrate reaction, which of the following will happen? the reaction is inhibited the amount of product increases. enzymes become denatured faster. enzymes work faster. the amount of enzyme also increases proportionally.
The image shows the rate of an enzyme reaction under conditions of no inhibition, competitive inhibition, and noncompetitive inhibition as reactions labeled uninhibited, A, and B. Which of the following best explains what has occurred in the enzyme reactions? Reaction B shows competitive inhibition, where increased substrate competes with inhibitors for the active site. Reaction A shows noncompetitive inhibition, where increased substrate competes with inhibitors for the active site. Reaction A shows competitive inhibition, where increased substrate does not affect the enzyme’s binding with the inhibitor. Reaction B shows noncompetitive inhibition, where increased substrate does not affect the enzyme’s binding with the inhibitor.
An enzyme facilitate catalysis by formation of ester bond with an alcoholic substrate. Which amino acid residues can facilitate such mechanism of catalysis? Select the correct response: Cys and Met Lys and Arg Ser and Tyr Glu and Asp
Which of the following is true of all allosteric enzymes? They have more than one active site on each subunit. They consist of proteins only. They have a nonprotein portion. Binding at one site affects the protein function at a second site. Which of the following explains why glycosides do not undergo mutarotation? There are no longer any stereocenters. There is no longer an anomeric carbon. The ring structure does not open to become the open-chain structure. None of the above is correct.