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Notes to prepare for lab midterm

by: Alexandra Graham

Notes to prepare for lab midterm Bio 1103K

Marketplace > Georgia State University > Biology > Bio 1103K > Notes to prepare for lab midterm
Alexandra Graham
GPA 4.0

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Only 12-15 questions on the test! We're gonna be fine.
Intro to Bio
Study Guide
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This 2 page Study Guide was uploaded by Alexandra Graham on Tuesday October 18, 2016. The Study Guide belongs to Bio 1103K at Georgia State University taught by Sylvester in Fall 2016. Since its upload, it has received 41 views. For similar materials see Intro to Bio in Biology at Georgia State University.


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Date Created: 10/18/16
Some notes to prepare for the Lab Midterm  Null hypothesis= there is a statistically significant difference between observed and expected values o Chi Square Value= (observed – expected) ^2/Expected [aka (O-E) ^2/E]  P value >.05 and chi value < 3.84= failed to reject null hypothesis  P value <.05 and chi value > 3.84= reject null hypothesis Organic Compound Tests  BEST: Benedict, sugar, orange  IDOL Star: iodine, starch, black  BPV: biuret, protein, violet  Sudan IV: Sudan IV, lipid, red  Yeast invertase: turns disaccharide into monosaccharide, then perform Benedict test (Benedict only responds to monosaccharide) Acids and Bases  Acids tend to be warm tones (red, orange) while bases tend to be cool (blue, purple)  Buffer= when acid or base is added, buffer resists change in pH  Neutralization reaction= strong base and strong acid cancel each other out o strong acid + strong base = they switch mates, yield water and white precipitate Types of Solutions  isotonic= same concentration of solute in sac and outside  hypertonic= higher concentration of solute outside of sac, water moves out of sac o plant loses water but cell walls prevent it from collapsing; animal cells collapse in on themselves  hypotonic= higher concentration of solute inside sac, water moves into sac o plant cells protected by cell wall, animal cells will pop Plasmolysis: shrinking of the cytoplasm away from the wall of a living cell due to outward osmotic flow of water Microscopes  resolution= minimum distance between two objects at which objects can be distinguished as separate  Calculate magnification: objective lens magnification x ocular lens magnification Bacteria  Kingdom MONERA  Rods, spirals, cocci (bundles of dots)  Cyanobacteria= anabaena (most important) and gloeotrichia


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