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21 Cards in this Set

  • Front
  • Back
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
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
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)
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
Lec 1
- Microbe
- Prokaryotic microbes
- Bacteria
- Archea
Lec 1
- Microbe
- Eukaryotic microbes
- fungi
- protists
- slime molds
- algae
- protozoa
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
Lec 1
- Carbohydrates
- Organic compound ratios
- Contain C, H, and O in a 1:2:1
- CH2O
Lec 1
- Carbohydrates
- 5 carbon rings
- Important for Nucleic Acids
- Ribose (RNA)
- Deoxyribose (DNA)
Lec 1
- Carbohydrates
- 6 Carbon rings
- important for cell walls
- important in energy
interconversion
- Hexoses, Glucose
Lec 1
- Carbohydrates
- Polysaccharides
- have a 1,4 linkage
- ex are starch, glycogen,
cellulose
Lec 1
- Carbohydrates
- Cell wall composition
- Special glyco derivatives
- have special N-acetyl group
- called peptidoglycan
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
Lec 1
- Simple Lipids
- AKA triglycerides
- F.A. linked to glycerol by
ester linkage
- single linkage for each ester
w/ 3 fatty acids
Lec 1
- Complex Fatty acids
- AKA phosphatidyl ethanolamine
- AKA phospholipids
- has 2 fatty acids or less
Lec 1
- Nucleotides
- 5 carbon ring bases
Lec 1
- Nucleotides
- Pyrimidine bases
- Small bases
- Cytosine (C)...DNA & RNA
- Thymine (T)...DNA only
- Uracil (U)... RNA Only
Lec 1
- Nucleotides
- Purine bases
- large bases
- Adenine (A)... DNA & RNA
- Guanine (G)... DNA & RNA
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
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
Lec 1
- Protein 2nd & 3rd degree
structure
- Alpha Helix
- H-bonds w/ nearby Amino Acid
- Beta Pleated Sheet
- H-bonds w/distant Amino Acid