Homework Answers
12. B. False.
The enzyme is present is very less concentration as compared to the substrate.
13.B. False.
Enzyme doesnt affect the value of equillibrium constant. If increases the speed of both forward and backward reaction.
14. A. True
Enzyme increase the rate at which substrate is converted to product.
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Indicate whether each of the following statements about enzymes is true or false. (Q12- 12. To be...
1. Write the category names of the following enzymes: hexokinase (EC 2.7.1.1) _; ATPases (EC 3.6.1.3)...
1. Write the category names of the following enzymes: hexokinase (EC 2.7.1.1) _; ATPases (EC 3.6.1.3) Fructose-bisphosphate aldolase (EC 4.1.2.13) ; ATP synthase (EC 7.1.2.2). phosphoglycerate mutase 1 (EC 5.4.2.11) ;DNA ligase (EC 6.5.1.1). Glyceraldehyde 3-phosphate dehydrogenase (EC 1.2.1.12) 2. True or False Enzymes are general chemical catalysts and each enzyme can recognize many different substrates in cells. Enzymes change the equilibrium constants for the reactions they catalyze. Enzymes lower the activation energy for the reactions they catalyze. Enzymes do...
For each of the following statements, determine if it is TRUE or FALSE. If false, explain...
For each of the following statements, determine if it is TRUE or FALSE. If false, explain why or rewrite the statement such that it is true. 1. Reactions generally start at equilibrium and stay there. 2. In cells, the product of one reaction is often the substrate for another reaction. 3. The energy of reactants at the start of an uncatalyzed reaction is different from the energy of reactants at the start of a catalyzed reaction. 4. An uncatalyzed reaction...
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.
All of the following are true of enzymes except: a. they are not consumed in the...
All of the following are true of enzymes except: a. they are not consumed in the reaction they catalyze b. they are only used in synthesis reactions c. they are specific for the reaction they catalyze d. they increase the rate at which a chemical reaction occurs
Enzymes are important molecules in biochemistry that catalyze reactions. The energy diagram illustrates the difference between...
Enzymes are important molecules in biochemistry that catalyze reactions. The energy diagram illustrates the difference between a catalyzed reaction and an uncatalyzed reaction. Label the energy diagram. Answer Bank AG for reaction activation energy catalyzed reaction reactants (substrate) free energy uncatalyzed reaction reaction progress products transition state What ways do enzymatic catalysts increase the rates of reactions? They shift the reaction equilibrium toward the products. They lower the activation energy of the reaction They decrease the free energy of the...
6) Whale insulin could be distinguished seralogically from pig insulin in spite of identical primary sequence....
6) Whale insulin could be distinguished seralogically from pig insulin in spite of identical primary sequence. This is because: A) They were folded at different temperatures in the different species. B) They were folded using different chaperone proteins. C) They were folded as larger precursor proteins with differing primary structure D) The antibodies used were made from denatured insulin 7) Enzymes are potent catalysts because they A) increase the equilibrium constants for the reactions they catalyze B) lower the activation...
BIOCHEMISTRY please answers the both questions Q1: Which of the following statements about enzymes are true?...
BIOCHEMISTRY please answers the both questions Q1: Which of the following statements about enzymes are true? (Check all that apply) A) Enzymes affect the activation energy of the reaction. b) Enzymes affect the equilibrium position of a chemical reaction. c) Enzymes affect the Gibbs Free Energy change of a chemical reaction. d) Enzymes decrease the time needed for a reaction to reach equilibrium. Q2: What best describes the nature of the active site. a) It is a rigid pocket that...
Which statement about enzyme catalyzed reactions is not true? a) enzymes form complexes with their substrates....
Which statement 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 K eq for chemical reactions. d) many enzymes change shape slightly when substrate binds. e) reactions occur at the "active site" of enzymes, where a precise 3D orientation of amino acids is an important feature of catalysis.
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....
12. Which of the following statements is true of enzyme catalysts? A B C To be...
12. Which of the following statements is true of enzyme catalysts? A B C To be effective, they must be present at the same concentration as their substrate. They can increase the equilibrium constant for a given reaction by a thousand-fold or more. They lower the activation energy for conversion of substrate to product. Their catalytic activity is independent of pH. They are generally equally active on D and L isomers of a given substrate. D E 13. In competitive...
1. Write the category names of the following enzymes: hexokinase (EC 2.7.1.1) _; ATPases (EC 3.6.1.3) Fructose-bisphosphate aldolase (EC 4.1.2.13) ; ATP synthase (EC 7.1.2.2). phosphoglycerate mutase 1 (EC 5.4.2.11) ;DNA ligase (EC 6.5.1.1). Glyceraldehyde 3-phosphate dehydrogenase (EC 1.2.1.12) 2. True or False Enzymes are general chemical catalysts and each enzyme can recognize many different substrates in cells. Enzymes change the equilibrium constants for the reactions they catalyze. Enzymes lower the activation energy for the reactions they catalyze. Enzymes do...
Enzymes are important molecules in biochemistry that catalyze reactions. The energy diagram illustrates the difference between a catalyzed reaction and an uncatalyzed reaction. Label the energy diagram. Answer Bank AG for reaction activation energy catalyzed reaction reactants (substrate) free energy uncatalyzed reaction reaction progress products transition state What ways do enzymatic catalysts increase the rates of reactions? They shift the reaction equilibrium toward the products. They lower the activation energy of the reaction They decrease the free energy of the...
6) Whale insulin could be distinguished seralogically from pig insulin in spite of identical primary sequence. This is because: A) They were folded at different temperatures in the different species. B) They were folded using different chaperone proteins. C) They were folded as larger precursor proteins with differing primary structure D) The antibodies used were made from denatured insulin 7) Enzymes are potent catalysts because they A) increase the equilibrium constants for the reactions they catalyze B) lower the activation...
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....
12. Which of the following statements is true of enzyme catalysts? A B C To be effective, they must be present at the same concentration as their substrate. They can increase the equilibrium constant for a given reaction by a thousand-fold or more. They lower the activation energy for conversion of substrate to product. Their catalytic activity is independent of pH. They are generally equally active on D and L isomers of a given substrate. D E 13. In competitive...
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