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Across 1. a common monosaccharide 4. type of lipid that has four fused rings; cholesterol, estrogen and testosterone 5. milk sugar 7. the element found in ALL organic compounds 8. glucose plus fructose = 10. consists of a 5 carbon sugar, a nitrogen containing base, and a phosphate group 12. important structural component of the cell membrane 15. energy storage molecule; _____ triphosphate (ATP) 17. type of compound that has a hydroxyl group (-OH) 18. type of fat that is liquid at room temperature 19. in animals, long chains of glucose used for energy storage

Down 2. type of fat that has all single bonds; solid at room temperature 3. composed of one or more chains of amino acids 4. long chains of glucose; energy storage 6. in organic compounds, the ___ group participates in reactions 9. type of bond that links amino acids into proteins 11. 5 carbon sugar, arranged in a ring; found in DNA 13. polysaccharide that makes up cell walls 14. protein molecule that speeds reactions 16. polysaccharide that makes up the exoskeleton of insects