Enzyme Reaction Which of the following is the best evidence for the lock and key theory of enzyme action? Enzymes are found in living organisms and speed up certain reactions Compounds similar in structure to the substrate inhibit enzyme activity Enzymes determine the direction of a reaction Enzymes speed up reactions by definite amounts Enzymes are found in living organisms and speed up certain reactions Compounds similar in structure to the substrate inhibit enzyme activity Enzymes determine the direction of a reaction Enzymes speed up reactions by definite amounts 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 the third law of thermodynamics Shelford's law of tolerance Leibig's law of the minimum the first law of thermodynamics the third law of thermodynamics Shelford's law of tolerance Leibig's law of the minimum ANSWER DOWNLOAD EXAMIANS APP
Enzyme Reaction To a living organism, which of the following has the greatest amount of available energy per molecule? ATP AMP H2O ADP ATP AMP H2O ADP ANSWER DOWNLOAD EXAMIANS APP
Enzyme Reaction If the free energy change (ΔG) in a reaction is a negative value, it indicates that the reaction absorbs energy reaction is in negative direction reaction is in positive direction reaction releases energy reaction absorbs energy reaction is in negative direction reaction is in positive direction reaction releases energy 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? Competitive inhibitors are blocking the reaction from occurring in the active site The energy of activation to form the transition-state complex is too high to allow the reaction to occur without assistance There must be contaminating elements in the balloon that prohibit the reaction from occurring All of these Competitive inhibitors are blocking the reaction from occurring in the active site The energy of activation to form the transition-state complex is too high to allow the reaction to occur without assistance There must be contaminating elements in the balloon that prohibit the reaction from occurring All of these ANSWER DOWNLOAD EXAMIANS APP
Enzyme Reaction About 7.3 kcal/mole are released when ATP hydrolysis is coupled to sucrose synthesis NAD+ is reduced to NADH glucose is converted to CO2 and H2O the terminal phosphate bond of ATP is broken by hydrolysis ATP hydrolysis is coupled to sucrose synthesis NAD+ is reduced to NADH glucose is converted to CO2 and H2O the terminal phosphate bond of ATP is broken by hydrolysis ANSWER DOWNLOAD EXAMIANS APP
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