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3. a protein found in red blood cells that binds and transports oxygen
4. short term store of energy in ANIMALS by linking glucose molecules together forming a branched chains
5. the compound that is the energy currency of the cell
7. a macromolecule that stores genetic information and is made of three parts, a sugar, a phosphate, and a nitrogenous base
12. used for construction materials and chemical reactions in the body
14. organic compounds with a characteristic molecular structure containing four rings
15. the structural component of plant cell walls
17. the substance an enzyme acts on

1. short term store of energy in PLANTS by linking glucose molecules together forming a chain
2. building block subunit of proteins
4. simple sugar
6. the site on an enzyme that attaches to its substrate
7. the subunit in which DNA and RNA chains are made
8. sugars used for short term energy as well as structure
9. the molecule in living organisms that contains inheritable information
10. a protein hormone that regulates blood glucose levels
11. a protein that speeds up a chemical reaction without being changed
13. something that increases the speed of a chemical reaction without being changed by the reaction
16. nonpolar molecules, fats & oils, used for long term energy
18. a single stranded chain of nucleotides that play a role in protein synthesis