Homework Answers
Answer :-
Can decrease rates of enzyme- catalyzed reactions.
Because inhibitors reduce the activity of enzyme by binding at the active site of the substrate itself and not let enzyme to bind. So decrease the rates of the reaction.
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Inhibitors of enzymes have no effect on kinetic constants O All statements O do not directly...
QUESTION 28 Among the following statements concerning the enzymes, all correct answers An apoenzyme consists of...
QUESTION 28 Among the following statements concerning the enzymes, all correct answers An apoenzyme consists of a holoenzyme and a.coenzyme Enzymes are biological catalysts that do not affect the reaction equilibrium The rate of reaction depends on the pH The catalytic site is formed of an active site and binding sites The activation energy of the uncatalyzed reaction is greater than the activation energy of the catalyzed reaction QUESTION 29 Which of the following statements are corrects? When the substrate...
Which of the following statements concerning enzymes is true and correct? O Most enzymes are not...
Which of the following statements concerning enzymes is true and correct? O Most enzymes are not proteins Enzymes slow down the rate of chemical reactions. O An enzyme is very specific in terms of which substrates it can bind. O An enzyme is consumed by the catalytic process. Question 9 1 pts Which one of the following statements about energy is correct? O Entropy is the movement of molecules from areas of higher concentration to areas of lower concentration. O...
Which of the following statements is false? O Most enzymes are proteins. Enzymes are biological catalysts...
Which of the following statements is false? O Most enzymes are proteins. Enzymes are biological catalysts that speed up reactions O a single type of enzyme can facilitate many different types of reactions O Enzymes can be denatured at extremes of temperatre and pH.
Which of the following statements are true about competitive enzyme inhibitors? a)They cause irreversible covalent modification...
Which of the following statements are true about competitive enzyme inhibitors? a)They cause irreversible covalent modification of the target enzyme. b)They lead to a decrease in apparent Km. c)All of these d)They have significant affinity for the enzyme-substrate complex. e)Their effect on reaction rate can be overcome at high substrate concentrations. f)They lead to a decrease in apparent Vmax. g)None of these
Which of the following statements about individual enzymes is NOT true? They are organic compounds, usually...
Which of the following statements about individual enzymes is NOT true? They are organic compounds, usually made of protein They are biological catalysts which increase the rates of chemical reactions Any given enzyme can function at any pH Enzymes denature if exposed to high temperature
9. Which of the following statements about enzyme catalyzed reactions is NOT true? a. Enzymes form...
9. Which of the following statements about enzyme catalyzed reactions is NOT true? a. Enzymes form complexes with their substrates b. Enzymes lower the activation energy for chemical reactions c. Enzymes change the Key for chemical reactions d. Many enzymes change shapes slightly when substrate binds 10. To overcome an energy barrier between reactants and products, energy must be provided to get the reaction started. This energy, which is recovered as the reaction proceeds, is called: a. Activation energy b....
Which of the following statements about enzymes is true? a. Enzymes can make a nonspontaneous reaction...
Which of the following statements about enzymes is true? a. Enzymes can make a nonspontaneous reaction spontaneous. b. As more substrate is added, the reaction will continue to occur faster and faster. c. An enzyme can couple a nonspontaneous reaction to a spontaneous reaction so that anabolic processes will occur. d. Catabolic reactions are spontaneous and do not require enzymes to occur in the cell.
Which of the following statements about enzymes are true? Select all that apply: Enzymes increase reaction...
Which of the following statements about enzymes are true? Select all that apply: Enzymes increase reaction rates by lowering the energy of the products. Enzymes increase the rate at which products are created by preventing reactions from running backwards. Enzymes increase reaction rates by lowering the activation energy of a reaction. Enzymes increase reaction rates by interacting with the substrate molecules to facilitate the reaction, for example by contorting them to facilitate bond-breakage or orienting them to favor bond formation.
1. Protein kinases phosphorylate target enzymes and as a result enzymes become activated or inactivated. Which...
1. Protein kinases phosphorylate target enzymes and as a result enzymes become activated or inactivated. Which of the statements are TRUE? (Multiple answers: You can select more than one option) A. Phosphorylated enzymes behave like competitive inhibitors B The presence of a phosphate acts as a non-competitive inhibitor/activator. No change in Km but significant change in Vmax C. The presence of a phosphate group induces a conformational change that modifies the affinity and catalytic ability of a target enzyme D....
To understand how enzymes work, complete the following statements. equilibrium To bring reacting molecules A and...
To understand how enzymes work, complete the following statements. equilibrium To bring reacting molecules A and B together in the correct way to reach the transition state, is required. raising The transition-state complex can then resolve to yield the products activation energy Enzymes accelerate reactions by energy. the activation lowering In the presence of an enzyme, is reached more rapidly due to the decrease in activation energy. C and D
QUESTION 28 Among the following statements concerning the enzymes, all correct answers An apoenzyme consists of a holoenzyme and a.coenzyme Enzymes are biological catalysts that do not affect the reaction equilibrium The rate of reaction depends on the pH The catalytic site is formed of an active site and binding sites The activation energy of the uncatalyzed reaction is greater than the activation energy of the catalyzed reaction QUESTION 29 Which of the following statements are corrects? When the substrate...
Which of the following statements concerning enzymes is true and correct? O Most enzymes are not proteins Enzymes slow down the rate of chemical reactions. O An enzyme is very specific in terms of which substrates it can bind. O An enzyme is consumed by the catalytic process. Question 9 1 pts Which one of the following statements about energy is correct? O Entropy is the movement of molecules from areas of higher concentration to areas of lower concentration. O...
Which of the following statements is false? O Most enzymes are proteins. Enzymes are biological catalysts that speed up reactions O a single type of enzyme can facilitate many different types of reactions O Enzymes can be denatured at extremes of temperatre and pH.
9. Which of the following statements about enzyme catalyzed reactions is NOT true? a. Enzymes form complexes with their substrates b. Enzymes lower the activation energy for chemical reactions c. Enzymes change the Key for chemical reactions d. Many enzymes change shapes slightly when substrate binds 10. To overcome an energy barrier between reactants and products, energy must be provided to get the reaction started. This energy, which is recovered as the reaction proceeds, is called: a. Activation energy b....
To understand how enzymes work, complete the following statements. equilibrium To bring reacting molecules A and B together in the correct way to reach the transition state, is required. raising The transition-state complex can then resolve to yield the products activation energy Enzymes accelerate reactions by energy. the activation lowering In the presence of an enzyme, is reached more rapidly due to the decrease in activation energy. C and D
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