Energy


1. Activation energy is the _________.

 

         a. energy released by the product 

         b. energy released by the substrate

         c. energy needed to make the reaction occur 

         d. energy contained within an enzyme


2. Select the correct statement.


         a. A competitive inhibitor binds to the active site of an enzyme.

         b. A competitive inhibitor binds to the allosteric site of an enzyme.

         c. A noncompetitive inhibitor binds to the substrate, not to the enzyme.

         d. A noncompetitive inhibitor binds to the active site of an enzyme. 


3. Enzymes __________.


         a. can help bring molecules together to make macromolecules

         b. can put stress on molecular bonds to help break down macromolecules

         c. reduce the amount of activation energy required in a reaction

         d. all of these


4. Which of these is an anabolic reaction?

 

         a. glycolysis 

         b. hydrolysis 

         c. condensation 

         d. a and b


5. Select the correct statement.


         a. In the process of oxidation molecules gain electrons.

         b. In the process of reduction molecules lose electrons.

         c. Oxidation and reduction always occur together.

         d. All of these are correct.


6. Oxidation means that an atom _________.

 

            a. loses an electron                                                     b. gains an electron

            c. loses a proton                                                          d. gains a proton


7. Which of these is a correct sentence?

 

            a. In oxidation an atom loses a proton. 

            b. In oxidation an atom gains an electron.

            c. In oxidation an atom loses an electron. 

            d. In oxidation an atom gains a neutron.