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Across 1. glycerol is a alcohol with 3 _______ groups 8. what is needed for a hydrolysis reaction to occur (opposite to condensation reaction) 10. the amount of heat energy required to raise the temperature of 1 kg of water by 1 °C. 11. what empirical formula does CnH2n-2O2 represent? 15. what lipids are good at storing (due to them being insoluble) 16. a bond when electrons shared by other atoms have an unequal distribution of charge 18. what metabolic reaction in plants requires water? 19. Phospholipids in the cell membrane are arranged in a 20. the water rich environment in the cell that the hydrophillic phosphate is attracted to 21. Water molecules are attracted to the ions and polar molecules and therefore collect around and separate them, therefore making water a good 22. the reason ice floats is due to ice being less _____ compared to water 23. the name of the bend in a unsaturated fatty acid 24. fatty acid that does not contain a double bond is a ___________ molecule 27. saturated fatty acids tend to have a higher _____ _______ than unsaturated fatty acids 29. example of an unsaturated fat 30. how many fatty acid tails do phospholipids have? 32. the reaction that occurs during the formation of lipids 34. -COOH is the functional group of what acid? 36. what kind of bond is an ester bond? 37. water molecule, one molecule is split into two via the addition of a water molecule 39. fatty acid that contains a double bond is a ___________ molecule 40. triglycerides are made out 3 fatty acids and a ______ molecule

Down 1. the type of bond where the slightly negatively charged oxygen of one water molecule attracts to a slightly positive charged hydrogen of another molecule in a large body of water. 2. what empirical formula does CnH2nO2 represent? 3. water has a high specific heat capacity, also causing water to have a high 4. what happens when water molecules are more strongly attracted to the sides of the tube than to each other 5. what group does each fatty acid have 6. what does high cohesive attraction lead to 7. the word for a water hating molecule, naturally repelling water 9. the bond created between the OH from glycerol molecule and the carboxylic acid from the fatty acid 12. how many fatty acid tails do triglycerides have? 13. triglycerides are insoluble in water but soluble in 14. the hydrogen bonds in a large body of water are continuously breaking and reforming making them ______ bonds 17. a liquid lipid at room temperature 25. type of lipid formed by the condensation reaction of fatty acids and glycerol 26. what is a product of a condensation reaction 28. instead of 3 fatty acids, phospholipids have a ________ group 31. what happens to water as it freezes 33. lipids are less dense than water, giving the useful function of ______ to marine animals 35. at room temperature a solid lipid is called a _ 38. example of a saturated fat