chapter 1_Spr11_1 - Concepts in Biology Chapter 1 Refer to...

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Concepts in Biology Chapter 1 Refer to powerpoints for relevant reading in text Some slides adapted from: www.cofc.edu/~delliss/Biol101Page/Bio101 ppt/LifeLecture.ppt
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Themes of biology…
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1) Life evolves and adapts to changing environments…
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2) Complexity and hierarchical organization
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Emergent Properties
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How do we study biology?
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3) Interaction with environment Producers (plants and other photosynthetic organisms) Consumers (including animals) Sunlight Chemical energy Heat Heat Ecosystem Figure 1.5
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4) Structure and function are correlated at all levels of biological organization
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5) Cells are an organism’s basic units of structure and function
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EUKARYOTIC CELL Membrane Cytoplasm Organelles Nucleus (contains DNA) 1 µm PROKARYOTIC CELL DNA (no nucleus) Membrane
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6) Continuity of life is based on heritable information in the form of DNA
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Fig. 1-10 Nucleus DNA Cell Nucleotide (a) DNA double helix (b) Single strand of DNA
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7) Feedback mechanisms regulate biological systems B A C D Enzyme 1 Enzyme 1 Enzyme 2 Enzyme 3 D D D D D D D D D D C B A Negative feedback Figure 1.11
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The core theme: Evolution
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