Chapter 2

2. a solution that resists changes in pH when acid or alkali is added to it.
3. a change from one state (solid or liquid or gas) to another without a change in chemical composition
5. A reaction where bonds are broken.
7. form the basic structural unit of nucleic acid
9. a region on an enzyme that binds to a protein or other substance during a reaction.
12. another term would be inert energy
14. a bond involving the sharing of electrons between atoms
16. A bond that forms when electrons are transferred from one atom to another.
20. single sugar
21. a substance that liberates hydrogen ions when in an aqueous solution.
22. an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
23. amino acid
24. a substance that accepts hydrogen ions
25. A reaction where bonds are broken and combined.
26. a substance produced by a living organism which acts as a catalyst to bring about a specific biochemical reaction.

1. Carbon-containing compound.
4. Lack of carbon; compound.
6. the ionized or ionizable constituents of a living cell, blood, or other organic matter.
7. chemical reaction in which an acid and a base react quantitatively with each other.
8. organic compound composed of carbon, hydrogen, and oxygen; includes starches, sugars, and glucose.
10. a carbohydrate whose molecules consist of a number of sugar molecules bonded together.
11. the energy of a body or a system with respect to the motion of the body or of the particles in the system.
12. a measure of the hydrogen ion concentration of a solution
13. any of a class of sugars whose molecules contain two monosaccharide residues.
15. (reaction)process in which molecules are formed, changed, or broken down.
17. A reaction where 2 or more molecules or atoms combine to form a larger and more complex molecule.
18. a weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other.
19. include wax and oil; fatty acid