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5 Cards in this Set
- Front
- Back
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What is an organic substance? (With examples)
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Organic substances contain carbon.
hydrogen, carbon, oxygen, nitrogen.... |
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What FIVE properties does water have which are caused by hydrogen bonds?
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High Specific heat capacity.
High latent heat of vaporisation. High surface tension. Relatively high density. Excellent Solvent properties. |
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Give a brief outline of monosaccharides.
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-a carbohydrate whose molecules are a single sugar unit. (sweet, soluble)
-general formula= CnH2nOn -Monosaccharides that contain five carbon atoms are called pentoses=C6H10O5 i.e ribose and deoxyribose -Monosaccharides that contain six carbon atoms are called hexoses = C6H12O i.e glucose (alpha and beta) |
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Give a brief outline of disaccharides.
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-Monosaccharides can link together to form larger molecules.
-Two monosaccharides = disaccharides. (sweet, soluble) -Different pairs of monosaccharides can link together to make different disaccharides e.g two glucose molecules link together to form the disaccharide maltose. |
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Give a brief outline of polysaccharides.
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-Polysaccharides are carbohydrates whose molecules are polymers-made of many monosaccharide monomers linked together.
-large molecules, not sweet, not soluble. |
