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The Science of Biology

The Science of Biology. Chapter 1. Study of Life Themes & Concepts. Themes. Science as a process of inquiry Evolution Energy transfer Continuity & Change Relationship of structure to function Regulation Interdependence in nature Science, technology & society.

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The Science of Biology

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  1. The Science of Biology • Chapter 1

  2. Study of Life Themes & Concepts BIOLOGY 114

  3. Themes • Science as a process of inquiry • Evolution • Energy transfer • Continuity & Change • Relationship of structure to function • Regulation • Interdependence in nature • Science, technology & society

  4. Science as a process of inquiry

  5. Science as a process of inquiry • repeatable observations & testable hypothesis

  6. Evolution • Core theme of biology Charles Darwin

  7. Natural selection • Evolutionary adaptation is a product of natural selection

  8. Nothing in biology makes sense exceptin the light of evolution. — Theodosius Dobzhansky BIOLOGY 114

  9. Natural selection • Evolutionary adaptation is a product of natural selection

  10. Energy transfer • Life is an open system • organisms continuously interact with the environment • stuff comes instuff goes out • energy is used Entropy rules!

  11. Energy utilization

  12. Continuity & change • Continuity of life is based on heritable information in the form of DNA • DNA – the genetic material – carries biological information from 1 generation to the next

  13. Form follows function • Structure & function are correlated at all levels of biological organization

  14. Interdependence • No organism is an island standing alone

  15. Science, technology & society • Science & technology must function within the framework of society • ethics

  16. Umbrella concepts Recurring principles & ideas BIOLOGY 114

  17. Diversity & unity • Dual aspects of life on Earth

  18. Unity of life What do organisms have in common? Why do similarities exist? BIOLOGY 114

  19. Evolution explains diversity & unity • Unity • evolutionary relationships • connected through a common ancestor • Diversity • natural selection • adaptations in different environments

  20. Properties of life growth & development reproduction order response energy utilization homeostasis evolutionary adaptation

  21. Levels of organization

  22. Each level has emergent properties

  23. Cell is basic unit of life • Cell theory • developed with early microscopes • prokaryotes • eukaryotes

  24. Diversity of life What differences are there between organisms? BIOLOGY 114

  25. 3 Domains of Life Bacteria, Archaea, Eukarya

  26. Organizing systems • Making sense out of the diversity • Hierarchical scheme

  27. Why study themes of Biology? • Biology is an ever expanding body of knowledge • too much to memorize it all • need to generalize • create a framework upon which to organize new knowledge • themes are fundamental in understanding the nature of living organisms

  28. Which science is growing the fastest in new knowledge? BIOLOGY!! Genomics & proteomicsprojects are driving research Dr. Mary Claire King

  29. Any Questions?? BIOLOGY 114

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