BioNotes1

BioNotes1 - Notes 1, 4, 15 Friday, September 07, 2007 1:06...

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Notes §1, 4, 15 Friday, September 07, 2007 1:06 AM Lecture: CHAPTER 1 "An Introduction to Biology" PROPERTIES OF LIFE: 1. Unity o All modern forms of life display a common set of characteristics. o Based on biological evolution. 2. Diversity o Many types of environments w/ diverse organisms. SEVEN CHARACTERISTICS OF LIFE: 3. 4. 5. Respond to environmental changes 6. 7. 8. Reproduction 9. Product of biological evolution LEVELS OF ORGANIZATION 10. Atoms 11. Molecules/macromolecules 12. Cells 13. Tissues 14. Organs 15. Organisms 16. Populations 17. Communities 18. Ecosystems 19. Biosphere Genome
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o "The complete genetic makeup of an organism." Evolutionary history and relatedness of all living organisms can be illuminated by genome analysis Genomics o "Techniques used to analyze DNA sequences in genomes Proteome o "The complete complement of proteins that a cell or organism can make. The genome carries the info to make its proteome Proteomics o Techniques used to analyze the proteome of a single species and the comparison of proteomes of different species. --------------------------------------------------------------------------------------------- ------- CHAPTER 4 "Cell Theory" CELL THEORY All living things are composed of one or more cells Cells are the smallest units of living organisms New cells come only from pre-existing cells by cell division FRUITS OF CELL THEORY Reveals great similarity among vastly different structures (unifying theme) Single cell (egg) may contain total heritage of most of the complex individual Improvement in microscopy = Improvement in understanding of cells CELL FUNCTION & STRUCTURE IS CONSERVED ACROSS ALL LIVING SYSTEMS All cells: o Compartmentalize contents away from environment o Contain DNA-based information systems o Maintain homeostasis internally o Have metabolism - use energy from environment to build structure(s)
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o o Respond to stimuli
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This note was uploaded on 04/12/2008 for the course BIO 240 taught by Professor Evans during the Fall '08 term at Hope.

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BioNotes1 - Notes 1, 4, 15 Friday, September 07, 2007 1:06...

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