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Across 6. An element beginning with C that all biological molecules contain 7. Made up of 3 fatty acids and glycerol 9. 3 of these combine with glycerol to make lipids (2 Words) 11. Biological catalysts which control the rate of metabolic reactions 12. An element all biological molecules contain beginning with H 13. 1 of these joined with 3 fatty acids make a lipid 14. A 3D shaped space in an enzyme molecule that matches the shape of the substrate (2 Words) 15. The reagent used for testing for starch

Down 1. An element that all biological molecules contain beginning with O 2. A molecule that reacts with a particular enzyme 3. The reagent used to test for protein 4. Made up of long chains of amino acids 5. The word to describe the perfect temperature or pH for enzymes to work 8. The reagent used to test for simple sugars 10. Join together to form peptides, polypeptides and proteins (2 Words)