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Biology 151 at UW-Madison Note Set 1

by: y-chen9

Biology 151 at UW-Madison Note Set 1 Biology 151

Marketplace > University of Wisconsin - Madison > Biology > Biology 151 > Biology 151 at UW Madison Note Set 1
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These notes cover lectures since the beginning of the semester (01/20 - (01/29). Also cover readings in the Biology 10th ed. textbook by Campbell: Chapter 1, 2, 3, 4, 8, 5.1, 5.2, 5.4). Neatly orga...
Biology 151
Dr. Seth Blair and Dr. Tony Stretton
Class Notes




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This 3 page Class Notes was uploaded by y-chen9 on Friday January 29, 2016. The Class Notes belongs to Biology 151 at University of Wisconsin - Madison taught by Dr. Seth Blair and Dr. Tony Stretton in Spring 2016. Since its upload, it has received 110 views. For similar materials see Biology 151 in Biology at University of Wisconsin - Madison.


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Date Created: 01/29/16
Biology 151 at UW-Madison Chapter 1-Evolution, Themes of Biology, Scientific Inquiry Each set of human chromosomes has approx. 3 billion nucleotides of DNA Genomics-Whole set of genes in a species Proteomics-Whole set of proteins in a species o High-throughput technology, bioinformatics, research teams Energy flows through an ecosystem, chemicals flow within. Negative Feedback: Response reduces initial stimulus o Uptake of glucose by cells decreases blood glucose levels. Eliminates need for insulin secretion Positive Feedback: End product speeds up own production o Giving birth Biological taxonomy: o Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species  Dumb King Phillip Came Over From Great Spain o For Humans: Animalia, Chordata, Mammalia, Primate, Hominidae, Homosapiens  All Cool Men Prefer Having Healthy HotStew 3 Domains of Life: Bacteria, Archaea, Eukarya Darwin and natural selection Chapter Review: Pg. 24-26 Chapter 2-The Chemical Context of Life  Basic chemistry Chapter 3-Water and Life Polar covalent bonds in water molecules result in hydrogen bonding.Hy Calorie-Amount of heat it takes to raise 1g of water 1 degree C  Specific Heat Capacity: Quantity of E needed to raise the T of 1 g of substance by 1 degree C. Used to distinguish one substance from another. Hydrophobic, hydrophilic pH Scale o Neutral pH (= 7), acidic pH (< 7), basic pH (>7) o pH is defined as the negative of the base 10 log of the hydronium ion conc o pH = -log[H O+3 o pOH = -log[OH ] -  Buffer Solutions: Maintains almost constant pH when limited amounts of acid/base are added o Buffer: Chemical system that resists change in pH  It does this because it has both a weak acid that can react with base and weak base that can react with acid  They are usually made of a weak acid and its conjugate base or a weak base and its conjugate acid.  In equal concentrations Lecture 1  Goals: Understand evolution, structure and function, information flow, exchange and storage, systems  Dr. Blair’s office hours: WID near Aldo’s coffee shop, Wed. 2:15- 3:15 pm o Developmental genetics w/ Drosophila  Dr. Stretton’s office hours: . . . Th. 4-5 pm & Sa. 10:30am-noon o Nervous system/neuropeptides w/ nematodes  Coordinators: Kerry Martin & Brian Parks o  WEEKLY BULLETIN: Tells all about the next week Species, Evolution and Cells  Spontaneous Generation: Life arisen from non-living matter o Horse hair, maggots in meat, mice from rags with wheat o Redi, 1668. Meat (covered) no maggots. Uncovered maggots  Linnaeus, 1700’s – DKPCOFGS taxonomy  Are species stable? o Assumption of species stability changed during 1800’s  Geology: Eat not 5,000 years old. Modern est. 4.6 billion  Fossil record: a) old species have vanished, b) current species missing from old fossils  New species appearing in new habitats?  Charles Darwin and the finches of the Galápagos o New species on new island…old species on mainland?  Conclusion: Species are NOT stable  History of cells o Invention of microscope o Hooke, 1655 – named cells..cells o Van Leeuwenhoek, 1600’s – found single-celled organisms in pond water which he called “animalcules”  The Cell Theory (mid 1800s)


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