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Across 3. Nitrogenous base found only in RNA 5. Main carbohydrate storage form in plants 8. Chemicals that speed the rate of a chemical reaction but are not used in the reaction 10. Level of protein structure which is the amino acid sequence 11. Organic molecules which function in enzymes, hormones, storage, transport, and muscle 12. Attached to the carbon skeleton to give each molecule its unique properties 14. Level of protein structure which is the 3D orientation of multiple polypeptides 16. Main carbohydrate storage form in animals 19. Fats which contain one double bond between carbon atoms 23. Long strings or chains of amino acids 26. Type of carbohydrate with many sugars 27. Large molecules which encode information and dictate the structure of proteins 28. Type of bond which holds DNA strands together 30. Organic molecule used for energy and energy storage 31. Type of carbohydrate with two sugars 32. Fats which contain two or more double bonds between carbon atoms

Down 1. Hydrophobic organic molecule which contains twice as much energy as carbohydrates 2. Form of lipids which form protective coatings 4. Nitrogenous base which always pairs with thymine in DNA 6. Level of protein structure which is the 3D orientation of a single polypeptide 7. When the 3D shape of a protein is long, fibrous, and highly repetitive 9. Fats which only contain single bonds between carbon atoms 10. Type of nitrogenous base consisting of a double ring 11. Type of nitrogenous base consisting of a single ring 13. When the 3D shape of a protein is spherical 15. Covalent bond between two amino acids 17. Required to make vitamin D and some hormones 18. Nitrogenous base which always pairs with guanine 20. Organic molecule where central carbon is connected to an amino group, carboxyl group, hydrogen atom, and an R-group 21. Type of carbohydrate with only one sugar 22. Level of protein structure which is the usual orientation of the chain 24. Forms the backbone of organic molecules 25. When polypeptides lose their tertiary structure 29. Molecule containing three phosphate groups and high energy bonds which create energy when broken