Enzymes catalyze a chemical reaction by A. decreasing the amount of ATP required to activate a reaction B. increasing the amount of ATP required to activate a reaction C. slowing down the reaction to obtain more products D. increasing the reaction to obtain more products E. decreasing the amount of ATP required and obtaining more products.

Enzymes catalyze a chemical reaction by A. decreasing the amount of ATP required to activate a reaction B. increasing the amount of ATP required to activate a reaction C. slowing down the reaction to obtain more products D. increasing the reaction to obtain more products E. decreasing the amount of ATP required and obtaining more products.

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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The reason for the increase in the rate of an enzyme reaction when the temperature is increased isa. decrease in kinetic energy of reactantb. increase in kinetic energy of reactantc. increase in activation energy of reactiond. decrease in activation energy of reaction
Enzymes are biological catalysts that enhance the rate of a reaction by: stabilizing the transition state. decreasing the amount of free energy released. increasing the activation energy. increasing the amount of free energy released. O increasing the energy in the transition state.
The function of enzymes is to:a. accelerate reactions to change the final resultb. produce otherwise non-existing reactionsc. stall reactions that would have happened otherwised. balance the pH in chemical reactionse. provide energy to biochemical reactions
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.
The reason for the decrease in the rate of enzyme reaction as the temperature is increased beyond the optimal temperature isa. decrese in the kinetic energy of the reactantsb. decrease in activation energy of reactionc. denaturation of the enzyme d. inhibition of the enzyme
Each enzyme has a specific which is the reactant that the enzyme will act upon. Induced Fit Model of Enzyme Action: The substrate induces a more complete fit of the active site around it. Active site can lower an EA barrier by: ງ
Enzymes are catalysts that increase the rate of reactions by pulling two substrates together. lowering the energy of activation. binding to a substrate and releasing protons. binding to a substrate and producing energy.
Main Idea: Changes in the shape or concentration of an enzyme affect its function Explain how the factors bellow affect enzyme's function. Give an example Substrate concentration Enzyme concentration PH Temperature
Classify the items as competitive or noncompetitive inhibitors for control of enzyme action. Bind to the allosteric site on the enzyme Not influenced by the concentration of substrate Resemble the substrate Do not resemble thhe substrate Bind to active site of the enzyme
Which of the following is correct regarding enzymes? Enzymes can speed up the rate of reaction by shifting the equilibrium of the reaction forward. Enzymes can make a nonspontaneous reaction spontaneous. Most enzymes are made up of DNA and RNA and are named based on the reaction that they catalyze. Enzymes can increase the rate of a reaction, but do not shift the equilibrium of a 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.
. To catalyze a biochemical reaction, an enzyme typically dissociates into additional reactant molecules, thereby increasing the геaction ratе decomposes and releases energy to increase the number of successful collisions between reactant molecules binds temporarily to reactant molecules to lower the activation energy of the reaction drives the reaction to completion by consuming byproducts of the reaction CLEAR ALL