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21 Cards in this Set
- Front
- Back
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Lec 1
- Microbe - ini characteristics |
- prokaryotic or Eukary
- free living or parasitic - Vary in size 1x2 micrometers (microscopic) - very old life forms - viruses and viroids are not microbes |
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Lec 1
- Microbe - Important points about evolution |
- microbes are oldest known life
forms - 3.8 BYA - 1st life on earth - 2 billion years of just microbes - 1.8 BYA - 1st eukaryotes - cyanobacteria - made O2 atm, killed older anaerobes |
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Lec 1
- Microbe - survival capabilites |
- microbes can be found
everywhere - 5 megarads of radiation 10000x better than man - exteme pH (0 to 11.4) - ext Temp (-15 C to 121 C) - ext Hyd Pres (13000 atm or 18500 lbs) - ext osmo pres (5.2 M NaCl) |
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Lec 1
- Microbe - More characterists Important card |
- Source of all life
- my phylogenially diverse than plants and animals - more abundant - grown in almost any local - transform the geosphere - affect climate - symbiotic relationship with plants/animals/other microbs - cause dieseases - influence behavior |
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Lec 1
- Microbe - Prokaryotic microbes |
- Bacteria
- Archea |
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Lec 1
- Microbe - Eukaryotic microbes |
- fungi
- protists - slime molds - algae - protozoa |
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Lec 1
- Microbe - Difference between Bacteria and Archea |
- Differing cell membrane and
wall composition - Bacteria sensative to Antibiotics...archea is not - Archeans make proteins & Nucleic acids like Eukarya - Bacteria make them differnt - Bacteria has plant & animal pathogens - archea does not |
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Lec 1
- Carbohydrates - Organic compound ratios |
- Contain C, H, and O in a 1:2:1
- CH2O |
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Lec 1
- Carbohydrates - 5 carbon rings |
- Important for Nucleic Acids
- Ribose (RNA) - Deoxyribose (DNA) |
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Lec 1
- Carbohydrates - 6 Carbon rings |
- important for cell walls
- important in energy interconversion - Hexoses, Glucose |
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Lec 1
- Carbohydrates - Polysaccharides |
- have a 1,4 linkage
- ex are starch, glycogen, cellulose |
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Lec 1
- Carbohydrates - Cell wall composition |
- Special glyco derivatives
- have special N-acetyl group - called peptidoglycan |
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Lec 1
- Common fatty acids - general characteristics |
- F.A. is a long chain of C's
w/ carboxylic acids at ends - Saturated (no double bonds) is solid @ room temp - Unsaturated (>1DU) is liquid @ room temp |
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Lec 1
- Simple Lipids |
- AKA triglycerides
- F.A. linked to glycerol by ester linkage - single linkage for each ester w/ 3 fatty acids |
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Lec 1
- Complex Fatty acids |
- AKA phosphatidyl ethanolamine
- AKA phospholipids - has 2 fatty acids or less |
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Lec 1
- Nucleotides |
- 5 carbon ring bases
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Lec 1
- Nucleotides - Pyrimidine bases |
- Small bases
- Cytosine (C)...DNA & RNA - Thymine (T)...DNA only - Uracil (U)... RNA Only |
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Lec 1
- Nucleotides - Purine bases |
- large bases
- Adenine (A)... DNA & RNA - Guanine (G)... DNA & RNA |
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Lec 1
- Nucleotides - DNA & RNA Bonding |
- DNA A-T Double bond
C-G Triple bond - RNA A-U Double bond C-G Triple Bond - PhosphoesterBonds link Carbon rings - Hydrogen links actual nucleic acids |
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Lec 1
- Amino Acids - General Structure |
- 3 Parts
1 - Carboxylic Acid 2 - Amino group (NH2) 3 - various C Chains in R position - 21 different bases in all |
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Lec 1
- Protein 2nd & 3rd degree structure |
- Alpha Helix
- H-bonds w/ nearby Amino Acid - Beta Pleated Sheet - H-bonds w/distant Amino Acid |
