ENZYME REACTION QUIZ

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

Leibig's law of the minimum

Shelford's law of tolerance

TRUE ANSWER : ?
YOUR ANSWER : ?

Adenosine triphosphate is a type of

steroid

amino acid

fatty acid

nucleotide

TRUE ANSWER : ?
YOUR ANSWER : ?

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

TRUE ANSWER : ?
YOUR ANSWER : ?

Oxidation is the

loss of electron

gain of protons

gain of electron

loss of proton

TRUE ANSWER : ?
YOUR ANSWER : ?

In the reaction, C6H12O6 + 6O2 → 6CO2 + 6H2O + energy, which component is being reduced?

Energy

O2

H2O

CO2

TRUE ANSWER : ?
YOUR ANSWER : ?

An endergonic reaction is one that

requires energy in order to proceed

looses energy

gives off much heat

releases energy for work

TRUE ANSWER : ?
YOUR ANSWER : ?

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

There must be contaminating elements in the balloon that prohibit the reaction from occurring

The energy of activation to form the transition-state complex is too high to allow the reaction to occur without assistance

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

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

TRUE ANSWER : ?
YOUR ANSWER : ?

The ability of FADH to be oxidized is __________ than the ability of FAD to be oxidized.

lesser

half

greater

approximately equal

TRUE ANSWER : ?
YOUR ANSWER : ?

To a living organism, which of the following has the greatest amount of available energy per molecule?

ADP

AMP

H2O

ATP

TRUE ANSWER : ?
YOUR ANSWER : ?