5 Written Questions

1. This mechanism amplifies the response of enzymes to substrates.
2. This refers to the potential energy available for release in a chemical reaction.
3. The totality of an organism's chemical reactions is called this.
4. The use of an exergonic process to drive an endergonic one.
5. The relative motion of an object.

5 Matching Questions

1. heat or thermal energy
2. coenzyme
3. catabolic pathway
4. anabolic pathway
5. phosphorylated

1. a Kinetic energy as associated with the random movement of atoms or molecules.
2. b If the cofactor is an organic molecule, it is more specifically called this.
3. c The recipient of a phosphate group from ATP.
4. d This consumes energy to build complicated molecules from simpler ones; they are sometimes called biosynthetic pathways.
5. e This is a break down pathway.

5 Multiple Choice Questions

1. Every energy transfer or transformation increases the entropy of the universe.
   1. first law of thermodynamics
   2. second law of thermodynamics
   3. thermodynamics
   4. heat or thermal energy
2. A net release of free energy.
   1. energy coupling
   2. allosteric reaction
   3. endergonic reaction
   4. exergonic reaction
3. The region of an enzyme at which the substrate attaches itself.
   1. metabolism
   2. active site
   3. induced fit
   4. coenzyme
4. A source of energy. Contains the sugar ribose, with the nitrogenous base adenine and a chain of three phosphate groups bonded to it.
   1. energy
   2. ATP
   3. entropy
   4. cofactor
5. The study of the energy transformations that occur in a collection of matter.
   1. entropy
   2. coenzyme
   3. energy
   4. thermodynamics

5 True/False Questions

1. enzyme-substrate complex → The reactant an enzyme act on on.

   True        False

2. endergonic reaction → A net release of free energy.

   True        False

3. potential energy → Energy that matter possesses because of its location or structure.

   True        False

4. competitive inhibitor → This mimic reduces the productivity of enzymes by blocking substrates from entering active sites.

   True        False

5. free energy → The portion of a system's energy that can perform work when temperature and pressure are uniform throughout the system, as in a living cell.

   True        False