Which bases are pyrimidines?

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What are 5 key functions of water inside and outside of cells? What is the structure of a water molecule? How are water molecules able to hydrogen bond? What is the definition of specific heat capacity? Why do hydrogen bonds give water a high specific heat capacity? Why does water have a high latent heat of evaporation? What is the definition of cohesive? Why are water molecules cohesive? What are the advantages of water molecules being cohesive? Why is water a good solvent? Why is water less dense when it is solid? Why is water's high specific heat capacity useful for living organisms? What are carbohydrates made from? Briefly describe the structure of glucose. What are the two forms of glucose and how do they differ? What is a polymer? Briefly describe the structure of ribose? What three elements are all carbohydrates made up of? What sort of bond forms a disaccharide? Describe condensation reactions. What is maltose formed of? What do alpha-glucose and fructose join to form? 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