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Peptide bonds are formed via what type of reaction?
| A. |
Condensation |
|
| B. |
Hydrolysis |
|
| C. |
Oxidation-Reduction |
|
| D. |
None of the above |
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- ________ are always changed by participating in a reaction. a. Enzymes c. Reactants b. Cofactors d. CoenzymesAmylase is an enzyme that breaks bonds between the monosaccharides in starch in order to detach these monosaccharides from the chain of starch. Based on this description, which type of reaction does amylase catalyze? A) Osmotic reactions B) Peptide reactions C) Dehydration reactions D) Hydrolysis reactionsWhich of the following is most correct about dehydration reactions? a)They often accompanied by hydrolysis of phosphate esters in biology b)They are easy to perform selectively in water c)Proteolysis is an example of a dehydration reaction
- Formation of a peptide bond is a. dehydration reaction b. reducing reaction c. electrophilic reaction d. nucleophilic reaction e. oxidizing reactionWhich statement is true regarding the function of a catalyst in a chemical reaction? a) A catalyst increases the rate of a reaction. b) A catalyst provides an alternate mechanism for the reaction. c) A catalyst is not consumed by the reaction. d) All of the above are true.From the point of view of the molecules involved, which of the following reactions illustrates an increase in entropy ? a) formation of phosphodiester bonds b) polymerization c) formation of glycosidic bonds d) condensation e) hydrolysis
- Hydrolysis is an example of which type of reaction? A. Catabolic B. Anabolic C. Exchange D. None of the above.Which of the following is TRUE about the enzymatic catalysis of a chemical reaction? A. It increases the energy of the transition state B. It decreases the free energy ∆G so that a reaction can proceed spontaneously C. It decreases the energy of the transition state D. It increases the forward and reverse ratesthe loss of electrons by one atom or molecule to another a. oxidation b. reduction c. catalysis d. synthesis e. degradation
- Which of the following is NOT true of enzymes? a) They may interact chemically with their substrates b) They may catalyze a reaction in both forward and reverse directions. c) They may alter Keq for the reaction that they catalyze. d) They may decrease the entropy of their substrates.Which of the following is most correct about dehydration reactions? a)They often accompanied by hydrolysis of phosphate esters in biology b)They are easy to perform selectively in water c)Proteolysis is an example of a dehydration reaction d)They are thermodynamically favored in waterWhich of the following chemical reactions is represented in the figure? a) links two polymers to form a monomer b) results in a peptide bond c) is a hydrolysis reaction d) joins two fatty acids together
