Biomolecules

5. a substance that changes in a chemical reaction
7. a substance or material consisting of very large molecules called macromolecules, composed of many repeating subunits
8. any of a class of organic compounds that are fatty acids or their derivatives and are insoluble in water but soluble in organic solvents. They include many natural oils, waxes, and steroids.
10. the building blocks of the fat in our bodies and in the food we eat
13. sugar molecules
14. the chemical breakdown of a compound due to reaction with water
15. large biomolecules that play essential roles in all cells and viruses
17. the minimum quantity of energy which the reacting species must possess in order to undergo a specified reaction
20. end substances after a biological process has occurred

1. proteins that help speed up metabolism, or the chemical reactions in our bodies
2. a molecule of any of a class of compounds, mostly organic, that can react with other molecules to form very large molecules, or polymers
3. adenine, guanine, cytosine, and thymine
4. a chemical compound found in living organisms
6. molecules used by all living things to make proteins
9. made up of chemical 'building blocks' called amino acids
11. nonmetallic chemical element in Group 14 of the periodic table.
12. a sugar derived from ribose by replacing a hydroxyl group with hydrogen.
16. a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
18. a region on an enzyme that binds to a protein or other substance during a reaction.
19. the surface or material on or from which an organism lives, grows, or obtains its nourishment