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Which term most precisely describes the cellular process of breaking down large molecules into smaller ones?
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Which of the following is a statement of the first law of thermodynamics?
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BIO 100--Quiz 5a

QuestionAnswer
Which term most precisely describes the cellular process of breaking down large molecules into smaller ones? catabolism
Which of the following is a statement of the first law of thermodynamics? energy cannot be created or destroyed
A chemical reaction that has a positive ΔG is correctly described as... endergonic
Why is ATP an important molecule in metabolism? It provides energy coupling between exergonic and endergonic reactions.
T or F- Which of the following statements about enzyme-catalyzed reactions is.. The reaction occurs faster than the same reaction in the absence of the enzyme. true
T or F- Which of the following statements about enzyme-catalyzed reactions is.. The free energy change of the reaction is opposite from the reaction in the absence of the enzyme. false
T or F- Which of the following statements about enzyme-catalyzed reactions is.. Enzymes slow down the reaction so there is time for it to occur. False
Increasing the substrate concentration in an enzymatic reaction could overcome which of the following? competitive inhibition
The following question is based on the reaction: A + B → C + D, shown in this figure. Which of the following bests describes the reaction? negative ΔG, spontaneous
The following question is based on the reaction A + B → C + D shown in this figure. Which of the following represents the difference between the free-energy content of the reaction and the free-energy content of the products? D
How does a noncompetitive inhibitor decrease the rate of an enzyme reaction? by changing the shape of the enzyme's active site
The mechanism in which the end product of a metabolic pathway inhibits an earlier step in the pathway is best described as.. feedback inhibition.
Some enzymatic regulation is allosteric. In such cases, which of the following would usually be found? an enzyme with more than one subunit
Which of the following is an example of cooperativity? a molecule binding at one unit of a tetramer allowing faster binding at each of the other three
 

 



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