Biology Lab Test 1

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frogzona
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27503
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Biology Lab Test 1
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2010-07-21 00:40:37
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Biology Lab
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Cards for Biology Lab Test 1
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  1. Deductive Reasoning
    proceeds from general to specific; in science leads from hypothesis to prediction
  2. dogma
    established belief, not to be questioned
  3. falsifiability
    open to be disproven
  4. hypothesis
    logical explanation for an observed phenomenon based on experience and knowledge
  5. inductive reasoning
    proceeds from specific to general, in science leads from observations to a specific hypothesis
  6. law
    explains a specific action, considered to be reliable until disproven
  7. observation
    sensation caused by one or more of the five senses
  8. parsimony (prinicple of)-
    simplest explanation is the best explanation until disproven
  9. theory
    explanation that brings together a group of hypotheses; confirmed through repeated tests
  10. Objectives
    • list and understand steps involved in sci method
    • list and understand characteristics of an appropriate hypothesis and be able to indentify a good hypothesis
    • differentiate between deductive and inductive reasoning
    • differentiate between theory, law and dogma
    • describe and properly apply the various sections of a lab report
  11. bar graph
    pictorial representation of one time measurements
  12. line graph
    pictoral representation of data that changes continuously over time
  13. pie chart
    pictorial representation of proportion each subpart contributes to the whole
  14. chisquare test
    compare data to a predicted standard often used to compare to mendelian prediction
  15. deviation
    diff in value between individual measssurements and the mean
  16. normal dist
    mean, median, mode are indentical
  17. one tailed test
    a t test used when comparing indentical organisms before and after an experiment treatment
  18. stand dev
    square root of the variance,small one indicate data tightly clustered around mean
  19. t test
    test to determine if two sets of data are sig diff
  20. two tailed test
    a t test used when comparing two diff populations
  21. variance
    avg of the squared deviations from the mean
  22. amino group
    NH3 group found on every amino acid
  23. anino
    negatively charged due to gain of e-
  24. atom numb
    protons
  25. atom mass
    pro and neutrons
  26. carb
    compound composed of carbon, H, and O in which H to O ratio is 2:1
  27. carboxyl
    acid group of aa or fatty acid COOH
  28. cation
    positively charged due to loss of e-
  29. condensation
    chem rx two molecules are bonded together to form a larger molecule with water as a byproduct
  30. dipeptide
    two aas by peptide
  31. emulsification
    mechanical breakdown of large fat globules into smaller fat globules
  32. fatty acid
    chain of C atoms bonded by h atoms and with a terminal carboxyl group, a fat is formed from 3 fatty acids and a glycerol molecule
  33. glycerol
    3 carbon molecule that forms a fat when bound to 3 fatty acids
  34. glycogen
    polysaccharide compose of glucose molecules, storage form of carb in liveran muscles
  35. hydrogen ion
    atom that has lost a negatively charged electron and therfore is positively charged
  36. peptide bond
    between amino group of one amino acid and carboxyl group of another aa
  37. polypeptide
    a molecule in which many aas are bonded together by peptide bonds
  38. protein
    a complex molecule made up of one or more polypeptide chains, condensation of aas
  39. starch
    polyscaccaride of 300-1000 glucose molecules produced only plant cells
  40. formed by condenstation of aas
    protein
  41. composedof aa linked in peptide bonds
    protein
  42. long carbon chain with several doub bonds
    unsat
  43. formed by hydrolysis of disacc
    glucose, maltose
  44. this plus 3 fatty acids forms a fat
    glycerol
  45. formed by hydrolysisof protein
    aa
  46. turns green with Benedicts reagent plus heat
    maltose
  47. turns violet with biuret agent
    protein
  48. turns black with iodine
    starch
  49. turns blue with ninhydrin
    aa
  50. stained by sudan-blacd
    fat
  51. 6 char of enzymes
    • polypeptide chains
    • catalysts
    • very specific
    • ph sensi
    • temp sensitive
    • more efficient with max contact with substrate
  52. catalase
    enzyme that promotes conversion of h peroxide to water and O
  53. catalyst
    alters rate of a chemical rx but is not affected by itself
  54. enzyme
    cell product capableof altering the rate of a chem rx,organc catalyst
  55. metabolism
    sum of all chem rx in a cell

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