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3. a single stranded chain of nucleotides that play a role in protein synthesis
7. something that increases the speed of a chemical reaction without being changed by the reaction
8. the subunit in which DNA and RNA chains are made
12. sugars used for short term energy as well as structure
14. the structural component of plant cell walls
15. organic compounds with a characteristic molecular structure containing four rings
17. the site on an enzyme that attaches to its substrate
18. the compound that is the energy currency of the cell
20. a protein that speeds up a chemical reaction without being changed

1. building block subunit of proteins
2. used for construction materials and chemical reactions in the body
4. a macromolecule that stores genetic information and is made of three parts, a sugar, a phosphate, and a nitrogenous base
5. short term store of energy in ANIMALS by linking glucose molecules together forming a branched chains
6. simple sugar
9. a protein found in red blood cells that binds and transports oxygen
10. a protein hormone that regulates blood glucose levels
11. nonpolar molecules, fats & oils, used for long term energy
13. the substance an enzyme acts on
16. short term store of energy in PLANTS by linking glucose molecules together forming a chain
19. the molecule in living organisms that contains inheritable information