Enzyme Reaction An enzyme that is always produced, regardless of the presence of substrates or the end products, is called a constitutive enzyme an isoenzyme a repressible enzyme an allosteric enzyme a constitutive enzyme an isoenzyme a repressible enzyme an allosteric enzyme ANSWER DOWNLOAD EXAMIANS APP
Enzyme Reaction Which of the following is the best evidence for the lock and key theory of enzyme action? Enzymes determine the direction of a reaction Enzymes are found in living organisms and speed up certain reactions Enzymes speed up reactions by definite amounts Compounds similar in structure to the substrate inhibit enzyme activity Enzymes determine the direction of a reaction Enzymes are found in living organisms and speed up certain reactions Enzymes speed up reactions by definite amounts Compounds similar in structure to the substrate inhibit enzyme activity ANSWER DOWNLOAD EXAMIANS APP
Enzyme Reaction Hydrogen and oxygen release enormous amounts of energy when they react. Yet, hydrogen and oxygen can be mixed together in a balloon and nothing will happen. Why? All of these The energy of activation to form the transition-state complex is too high to allow the reaction to occur without assistance Competitive inhibitors are blocking the reaction from occurring in the active site There must be contaminating elements in the balloon that prohibit the reaction from occurring All of these The energy of activation to form the transition-state complex is too high to allow the reaction to occur without assistance Competitive inhibitors are blocking the reaction from occurring in the active site There must be contaminating elements in the balloon that prohibit the reaction from occurring ANSWER DOWNLOAD EXAMIANS APP
Enzyme Reaction The ability of Vibrio fischeri to convert chemical energy directly into radiant energy in bioluminescence is an example of __________ at work. the first law of thermodynamics Leibig's law of the minimum Shelford's law of tolerance the third law of thermodynamics the first law of thermodynamics Leibig's law of the minimum Shelford's law of tolerance the third law of thermodynamics ANSWER DOWNLOAD EXAMIANS APP
Enzyme Reaction The affinity of an enzyme for its substrate, when the enzyme has a Km of 0.50 M will be __________ than the affinity of an enzyme for its substrate when the enzyme has a Km of 0.05 M. half greater lesser approximately equal half greater lesser approximately equal ANSWER DOWNLOAD EXAMIANS APP
Enzyme Reaction An endergonic reaction is one that releases energy for work requires energy in order to proceed looses energy gives off much heat releases energy for work requires energy in order to proceed looses energy gives off much heat ANSWER DOWNLOAD EXAMIANS APP
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