Zoology - Lecture 3 - Lecture 3 What Underlies Life? What...

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1 Lecture 3 What Underlies Life? • What we will cover today? – Water: SMALL molecule BIG impact – Animals are the product of organic molecule O H H δ+ δ− H 2 O Water O H H δ+ δ− Hydrogen Bond O H H δ+ δ− O H H δ+ δ− O H H δ+ δ− O H H δ+ δ− O H H δ+ δ− O H H δ+ δ− H 2 O Water Na+ Cl - Na+ Na+ Na+ Cl - Cl - Cl - Cl - Na+ Cl - Na+ Na+ Cl - Na+ Na+ Na+ Cl - Cl - Cl - Cl - Na+ Cl - Na+ O H H δ+ δ− O H H δ+ δ− O H H δ+ δ− O H H δ+ δ− O H H δ+ δ− O H H δ+ δ−
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2 Figure 2.11 Water & Life 4 water is cohesive 4 water is adhesive, i.e. water is a good solvent 4 high heat capacity (specific heat: 1cal/g/ o C) 4 high heat of vaporization 4 expands when it freezes Chemical Reactions: Creating Polymers and Monomers • Energy Storage: creating polymers • Building Structures: creating polymers • Accessing Nutrients: creating monomers • Accessing Energy: creating monomers Organic Compounds A. Carbohydrates = C N (H 2 O) N monosaccharides – simple sugars, 3-7 carbons, straight chain or ring – disaccharides
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This note was uploaded on 04/22/2008 for the course ZOO 1114 taught by Professor Melodybrooks during the Spring '08 term at The University of Oklahoma.

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Zoology - Lecture 3 - Lecture 3 What Underlies Life? What...

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