Your Pre AP biology final exam review KEY: I. Biomolecules: Organic or inorganic? How do you tell?_organic compounds contain carbon__ Categorize organic or inorganic: Inorganic Inorganic Organic Organic What are the 4 classes of compounds? _carbohydrate, lipid, nucleic acid, protein_ How can you tell the difference between Carbohydrates and everything else? Carbs have C:H:O in a 1:2:1: ratio Lipids and everything else? _Lipids have C:H:O but not in any predicable ratio_ Proteins and everything else? Proteins have C, H, O and N but no P Nucleic acids and everything else? Nucleic Acids have C, H, O, P, and N What kind of bond holds together Carbohydrates glycosidic linkage – Lipids Ester linkages – Nucleic acids - phosphodiester bonds Proteins peptide bonds – Starch - Hair - DNA carbohydrate protein nucleic acid – Cellulose Plant cell walls Enzymes - carbohydrate carbohydrate proteins – – carbohydrates protein Organic product of photosynthesis - carbohydrate Carbohydrate Nucleic acid Component of cell membrane - the phospholipid or lipid if it’s cholesterol Protein transport, channel if it’s a or surface marker Nucleic acid Lipid Hemoglobin protein Unsaturated fat Saturated fat
Your Pre AP biology final exam review KEY: I. Biomolecules: Organic or inorganic? How do you tell?_organic compounds contain carbon__ Categorize organic or inorganic: Inorganic Inorganic Organic Organic What are the 4 classes of compounds? _carbohydrate, lipid, nucleic acid, protein_ How can you tell the difference between Carbohydrates and everything else? Carbs have C:H:O in a 1:2:1: ratio Lipids and everything else? _Lipids have C:H:O but not in any predicable ratio_ Proteins and everything else? Proteins have C, H, O and N but no P Nucleic acids and everything else? Nucleic Acids have C, H, O, P, and N What kind of bond holds together Carbohydrates – glycosidic linkage Lipids – Ester linkages Nucleic acids - phosphodiester bonds Proteins – peptide bonds Starch - carbohydrate Hair - protein DNA – nucleic acid Cellulose – carbohydrate Plant cell walls – carbohydrate Enzymes - proteins Organic product of photosynthesis - carbohydrate protein carbohydrates Carbohydrate Component of cell membrane - lipid if it’s the phospholipid or cholesterol Protein if it’s a transport, channel or surface marker Nucleic acid Lipid Nucleic acid Hemoglobin protein Unsaturated fat Saturated fat
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