Term
| What four elements if life made of? |
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Definition
| Hydrogen, carbon, nitrogen, oxygen. 96% of mass in living creatures is one of these elements. |
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Term
| Pauling Scale of Electronegativity |
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Definition
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Term
| What are functional groups? |
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Definition
| Common small molecules; also found as small parts of very large molecules; each has their own character and reactivity. |
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Term
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Definition
| Polar; H-bonds form between water molecules; H-bonds can break and reform quickly. |
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Term
| Effects of Water's Structure |
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Definition
| Readily available H-bonding with other polar molecules (quickens reactions by forming a good solvent, ions and polars stay in solution, self-bonding gives cohesion and surface tension); acts as an insulator (due to high specific heat, maintains a consistent temperature for reactions); expands at its freezing point (ice is less dense than water, keeps seas free of submerged ice). |
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Term
| What are the four classes of biological molecules? |
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Definition
| Lipids, Carbohydrates, Nucleic Acids, Proteins. |
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