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Carbon in Biology and its Role in Living Systems

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Presentation Transcript

  1. Carbon Chapter 4

  2. Carbon & Biology • Carbon atoms form during stellar evolution

  3. Carbon & Biology • Living systems exchange carbon with the environment:

  4. Carbon & Biology • Molecules of Life include: • ~65% H2O • ~33% organic compounds (Carbon) • proteins • lipids • nucleic acids • carbohydrates • ~2% inorganic compounds

  5. Properties of Carbon • C atoms are versatile building blocks • 4 valence electrons • stable, covalent bonds

  6. Structure & function • Carbon molecules build large polymers

  7. Structure & function • Carbon molecules rearrange into isomers • Same molecular formula but different structures

  8. Structure & function • Carbon molecules form chemical bonds with other elements • Functional Groups: • Amino (NH2) • Carboxyl (COOH) • Hydroxyl • Phosphate • Sulfhydryl…

  9. Fun Carbon Molecules morphine serotonin cellulose

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