Moleculues of Cells

Moleculues of Cells - Download 3 The Molecules of Cells...

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Download 3 The Molecules of Cells Principles of Biology BIOL 1543 Greig Roberts, DDS Office: SCEN 417 E-Mail: [email protected]
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Introduction to organic compounds Life’s molecular diversity is based on the properties of carbon A carbon atom can form up to four covalent bonds, allowing it to build large and diverse organic compounds Structural formula Methane H H H H H H H H Ball-and-stick model Space-filling model C C The 4 single bonds of carbon point to the corners of a tetrahedron.
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Organic molecules are compounds containing carbon. They are used by living things. Hydrocarbons are composed of only hydrogen and carbon. Some carbon compounds are isomers , molecules with the same molecular formula but different structures. Organic molecules
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Carbon chains vary in many ways C H H H C H H H C H H H C H H C H H H C H H H C H H H C H H H C H H C H H C H H H C H C H H H Size/length Branching Multiple bonds C H H H C H H C H C H H C H H H C H H C H C H H
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Functional groups help determine the properties of organic compounds. Particular groupings of atoms give molecules certain properties. Functional groups
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Female lion Estradiol HO OH OH O Testosterone Male lion
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The four main classes of biological molecules are carbohydrates, lipids, proteins, and nucleic acids. Many of the molecules are gigantic and are called macromolecules. Cells make most of their large molecules by joining smaller organic molecules (“monomers”) into chains called polymers.
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