Lec3 - 2.8 Molecules of Life Molecules that make up living...

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2.8 Molecules of Life Molecules that make up living things are called biological molecules. Carbon is the main element in those. The four classes of biological molecules are carbohydrates , lipids , proteins , and nucleic acids .
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Biological Molecules Contain Carbon Organic compound : composed of carbon and at least one hydrogen atom Covalent bond: stable Hydrocarbons Straight chain Branching Ring structure
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Functional Groups Affect the Chemical Behavior of Organic Compounds Functional groups (cluster of atoms bonded to carbon) give rise to specific properties Hydroxyl Methyl Phosphate
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Cells Have Chemical Tools to Assemble and Break Apart Biological Molecules Cell reactions use enzymes Condensation reactions Polymers formed from monomers Hydrolysis reactions Monomers formed from polymers
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Monomers and polymers Enzymes
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2.9 Carbohydrates: Plentiful and Varied Carbohydrates are the most abundant biological molecules. Cells use carbohydrates to help build cell parts and to store energy. Extra- cellular matrix (green)
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Simple Sugars Are the Simplest Carbohydrates Monosaccharide (saccharide is sugar in Greek) – one monomer of sugar, simplest carbohydrate and H ined to a carbon backbone O and H joined to a carbon backbone Taste sweet and dissolve in water ne of the energy sources One of the energy sources C 6 H 12 O 6 - glucose recursor of many compounds including vitamin C Precursor of many compounds including vitamin C
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This note was uploaded on 03/12/2012 for the course NPB 10 taught by Professor Moglinger during the Spring '12 term at UC Davis.

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Lec3 - 2.8 Molecules of Life Molecules that make up living...

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