Enzyme Reaction

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Enzyme Reaction

Question 1 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If the free energy change ($\delta$G) in a reaction is a negative value, it indicates that the
A
reaction releases energy
B
reaction absorbs energy
C
reaction is in negative direction
D
reaction is in positive direction
Question 2 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If the Keq for an enzymatic reaction is greater than 1, the reaction
A
will be endergonic
B
can not occur without the input of energy
C
both (a) and (b)
D
none of these
Question 3 [CLICK ON ANY CHOICE TO KNOW THE RIGHT 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?
A
Competitive inhibitors are blocking the reaction from occurring in the active site
B
There must be contaminating elements in the balloon that prohibit the reaction from occurring
C
The energy of activation to form the transition-state complex is too high to allow the reaction to occur without assistance
D
all of the above
Question 4 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The fact that $\beta$-oxidation of fatty acids, occurs in the mitochondria whereas fatty acid synthesis occurs in the cytoplasmic matrix, is an example of regulation of enzymatic activity by the ..... mechanism.
A
compartmentation
B
induction
C
competitive inhibition
D
repression
Question 5 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In the reaction, C$_{6}$H$_{12}$O$_{6}$ + 6O$_{2}$ $\rightarrow$ 6CO$_{2}$ + 6H$_{2}$O + energy, which component is being reduced?
A
O$_{2}$
B
CO$_{2}$
C
H$_{2}$O
D
Energy
There are 5 questions to complete.