311C_F08_chapter 1-1 - Concepts in biology Chapter 1...

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Unformatted text preview: Concepts in biology Chapter 1 Relevant parts Some slides adapted from: www.cofc.edu/~delliss/Biol101Page/Bio101 ppt/LifeLecture.ppt Some properties of life (c) Response to the environment (a) Order (d) Regulation (g) Reproduction (f) Growth and development (b) Evolutionary adaptation (e) Energy processing Themes of biology 1. Complexity and hierarchical organization From cells to molecules Cell 8 Cells 6 Organs and organ systems 7 Tissues 10 Molecules 9 Organelles 50 m 10 m 1 m Atoms Figure 1.3 From the biosphere to organisms Figure 1.3 The biosphere Ecosystem Communities Populations Organisms Emergent Properties With each step upward in the hierarchy of biological organization, properties emerge that were not present at simpler levels of organization Complexity arises due to arrangement and interaction Reductionism is the reduction of complex systems to simpler components that are more manageable to study An understanding of biology balances reductionism with the study of emergent properties 2. Heritable information: The instructions to build living organisms are encoded in DNA Fig. 1-10 Nucleus DNA Cell Nucleotide (a) DNA double helix (b) Single strand of DNA Nuclei containing DNA Sperm cell Egg cell Fertilized egg with DNA from both parents Embryos cells with copies of inherited DNA Offspring with traits inherited from both parents Fig. 1-9 Inherited DNA directs development of an organism 3. Cells are an organisms basic units 3....
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This note was uploaded on 10/15/2008 for the course BIO 311C taught by Professor Satasivian during the Spring '08 term at University of Texas at Austin.

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311C_F08_chapter 1-1 - Concepts in biology Chapter 1...

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