BIMM 120 CH 14 & 16

  1. proton motive force
    drive protons across the membrane to produce ATP
  2. three major classes that use ETS
    • organotrophy: organic electron donor
    • lithotrophy: inorganic electron donor
    • phototrophy: light absorption excites electrons
  3. a reaction is favored by
    positive E and negative G
  4. proton motive force is known as
  5. PMF drives the conversion of ____ to _____ through _____
    ADP to ATP through ATP synthase
  6. PMF drives what cell processes
    • ATP synthesis
    • flagella rotation
    • uptake of nutrients
    • efflux of toxins
  7. salmonella enterica can use what as terminal electron acceptor
  8. F1F0ATP synthase
    • F0: embedded in membrane, pumps proton
    • F1: protrudes in cytoplasm generates ATP
  9. dissimilatory metal reduction
    • class of anaerobic respiration that involves reduction of metals
    • most commonly iron and manganese
  10. methanogenesis
    conversion of CO2 and H2 to methane
  11. fermentation industry goes back to what year?
    5000 BC
  12. what are mushrooms
    fungal fruiting bodies
  13. edible algae
  14. edible bacteria
    cyanobacterium spirulina
  15. purpose of food fermentation
    • preserve food
    • improve digestibility
    • add nutrients or flavor
  16. traditional fermented foods depend on
    • indigenous flora
    • starter cultures
  17. food fermentations produce ___ and ____ which serve as effective _____
    • acids and bases
    • preservatives
  18. acidic fermentation of yogurt and cheese
    lactic acid fermentation with lactobacillus and streptococcus
  19. in all fermented foods, microbial metabolism generates by-products that confer characteristic ____ and ____
    aroma and flavor
  20. theobroma cacao fermentation produces what and uses what microbes?
    • chocolate
    • microbes from indigenous flora
Card Set
BIMM 120 CH 14 & 16