Unit 2 Biochemistry Vocab

2. a substance that decreases the activation energy needed to start a chemical reaction, therefore increases the rate of the chemical reaction
4. a large molecule made of many monomers bonded together
5. nonpolar molecules that include fats, oils, wax, and cholesterol
7. changes substances into different substances by breaking and forming bonds
9. substances changed during a chemical reaction
10. measurement of acidity
11. attraction among molecules of a substance
14. a subunit in a complete molecule
16. reaction absorbs more energy than it releases
18. molecules composed of C, H, and O, energy source (sugar & starches)
19. the amount of energy that needs to be absorbed for a chemical reaction to start
20. chemical reaction releases more energy than it absorbs

1. attraction between a slightly positive hydrogen atom and a slightly negative atom
3. polymers that are made up of monomers called nucleotides
6. molecules that contain C, H, O, N, and sometimes S (sulfur), make up proteins
8. a mixture of substances that is the same throughout
10. substances made by a chemical reaction
12. the specific reactants that an enzyme acts on
13. a polymer made of monomers called amino acids
15. attraction among molecules of different substances
16. are catalysts for chemical reactions in living things
17. has slight positive region and slight negative region