If an enzyme functions to enable the following reactions, which type of catalytic strategy is most likely given the chemical reaction shown
Homework Answers
Enol to keto is acid catalysed which supply proton for alkene tp alkane.second case is Cu2+ catalyzed so it is metal ion assisted reaction.
Third case is nucleophilic catalyzed which forms a better reaction center by the aid of pyridine.
Case 4 is acid catalyzed which makes the P center more susceptible to nucleophilic attack.
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If an enzyme functions to enable the following reactions, which type of catalytic strategy is most likely given the chem...
First question: Which type of enzyme fron table 11-2 catalyzes the following reactions (a) 600 c=0...
First question: Which type of enzyme fron table 11-2 catalyzes the
following reactions
(a) 600 c=0 CH + NADH + H - 500- + NAD HO-- CH, COO H-CH(CH HỘI NH ADP + P 5. On the free energy diagram shown, label the intermediate(s) and transition state(s). Is the reaction thermodynamically favorable? 6. Urcase, the first enzyme to be crystallized, is inhibited in the presence of Hg, Cd, or Co ions What does this information suggest about the catalytic mechanism...
What type of mechanism are the given reactions most likely to follow? What type of mechanism...
What type of mechanism are the given reactions most likely to
follow?
What type of mechanism are the given reactions most likely to follow? © Hold and drag to reorder SN2 SN1 and SN2 SN1 excess HBr 4,0 + HO de excess HBr 2 W ov Br+ Br + H20 excess HBr Br Br HO
D Which of the following is not one of the three most common catalytic reaction mechanisms...
D Which of the following is not one of the three most common catalytic reaction mechanisms in an enzyme active site? Choose one: A temporarily sharing electrons between two atoms B. protonation or deprotonation of an amino acid, or water, on the enzyme C. using the histidine side chain to form covalent bonds with the substrate D. utilizing positively charged metal ions to correctly orient the substrate, or to mediate redox reactions
Which of the following mutations in the active site of the enzyme enolase is most likely...
Which of the following mutations in the active site of the enzyme enolase is most likely to result in an enzyme that still catalyzes its reaction? Choose one: A. Glu295→Lys295 B. Glu295→Asp295 C. Lys396→Ile396 D. Lys396→Glu396.
10) Would an amino acid with the given side chain be most likely found in the hydrophobic or hydrophilic region of a pr...
10) Would an amino acid with the given side chain be most likely found in the hydrophobic or hydrophilic region of a protein? -CH-CH3 он CH2-CH-CH3 он CH3 11) What process occurs when heat, acids, bases, and heavy metal ions cause loss of biological function of a protein? 12) Answer the following questions regarding enzyme activity: a) The optimum temperature and pH for most biological enzymes is b) The molecules to which an enzyme binds are called the c) The...
no explaination is needed 28) Which of the following is true for all exergonic reactions? A)...
no explaination is needed
28) Which of the following is true for all exergonic reactions? A) The reaction proceeds with a net release of free energy B) The products have more total energy than the reactants. C) A net input of energy from the surroundings is required for the reactions to proceed. D) The reactions are nonspontaneous 29) When ATP releases some energy, it also releases Inorganic phosphate. What purpose does this serve (if any) in the cell? A) It...
Question 2 2.5 pts Which of the following statements is (are) true about enzyme-catalyzed reactions? The...
Question 2 2.5 pts Which of the following statements is (are) true about enzyme-catalyzed reactions? The reaction is faster than the same reaction in the absence of the enzyme. The free energy change of the reaction is opposite from the reaction in the absence of the enzyme. The reaction always goes in the direction toward chemical equilibrium. O A and B only. O A, B, and C.
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...
Which one if the following reactions is most likely to give a polysubstituted product? Also i need help on question 2...
Which one if the following reactions is most likely to give a
polysubstituted product? Also i need help on question 29. Thank you
28. Which one of the following reactions is most likely to give a polysubstituted product? A) Friedel-Crafts alkylation B) Friedel-Crafts acylation C) Nitration D) Sulfonation E) Halogenation 29. Predict the major product for the following reaction. AlCl3
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....
First question: Which type of enzyme fron table 11-2 catalyzes the
following reactions
(a) 600 c=0 CH + NADH + H - 500- + NAD HO-- CH, COO H-CH(CH HỘI NH ADP + P 5. On the free energy diagram shown, label the intermediate(s) and transition state(s). Is the reaction thermodynamically favorable? 6. Urcase, the first enzyme to be crystallized, is inhibited in the presence of Hg, Cd, or Co ions What does this information suggest about the catalytic mechanism...
What type of mechanism are the given reactions most likely to
follow?
What type of mechanism are the given reactions most likely to follow? © Hold and drag to reorder SN2 SN1 and SN2 SN1 excess HBr 4,0 + HO de excess HBr 2 W ov Br+ Br + H20 excess HBr Br Br HO
D Which of the following is not one of the three most common catalytic reaction mechanisms in an enzyme active site? Choose one: A temporarily sharing electrons between two atoms B. protonation or deprotonation of an amino acid, or water, on the enzyme C. using the histidine side chain to form covalent bonds with the substrate D. utilizing positively charged metal ions to correctly orient the substrate, or to mediate redox reactions
10) Would an amino acid with the given side chain be most likely found in the hydrophobic or hydrophilic region of a protein? -CH-CH3 он CH2-CH-CH3 он CH3 11) What process occurs when heat, acids, bases, and heavy metal ions cause loss of biological function of a protein? 12) Answer the following questions regarding enzyme activity: a) The optimum temperature and pH for most biological enzymes is b) The molecules to which an enzyme binds are called the c) The...
no explaination is needed
28) Which of the following is true for all exergonic reactions? A) The reaction proceeds with a net release of free energy B) The products have more total energy than the reactants. C) A net input of energy from the surroundings is required for the reactions to proceed. D) The reactions are nonspontaneous 29) When ATP releases some energy, it also releases Inorganic phosphate. What purpose does this serve (if any) in the cell? A) It...
Question 2 2.5 pts Which of the following statements is (are) true about enzyme-catalyzed reactions? The reaction is faster than the same reaction in the absence of the enzyme. The free energy change of the reaction is opposite from the reaction in the absence of the enzyme. The reaction always goes in the direction toward chemical equilibrium. O A and B only. O A, B, and C.
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...
Which one if the following reactions is most likely to give a
polysubstituted product? Also i need help on question 29. Thank you
28. Which one of the following reactions is most likely to give a polysubstituted product? A) Friedel-Crafts alkylation B) Friedel-Crafts acylation C) Nitration D) Sulfonation E) Halogenation 29. Predict the major product for the following reaction. AlCl3
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....
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