# Enzyme Reaction

## Click on any option to know the CORRECT ANSWERS

 Question 1
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
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
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
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
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.