BIO chapter (7)

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Author:
elevatedsound7
ID:
198903
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BIO chapter (7)
Updated:
2013-02-11 16:38:01
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bio chapter
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bio chapter 7
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  1. • Autotroph:
    self-feeders use carbon dioxide
  2. • Heterotroph:
    other-feeders use organic carbon
  3. • Chemotroph:
    Phototroph:)
    • Lithotroph:
    • use organic molecules•
    •  use light (converts C02 and water
    •  use inorganic molecules like H2S
  4. osmosis =
    • movement of water across a membrane
    • moves to side with more dissolved material
  5. facilitated diffusion  =
    • protein carriers are used to transport hydrophilic molecules
    • no energy required
    • does not accumulate agains a gradient
  6. Active Transport =
    • protei carrier
    • energy IS required
    • ie = endocytosis, pinocytosis
  7. pinocytosis =
    • cell drinking
    • microvilli trap liquid and bring inside the cell
  8. mesophile =
    microbe that like optimal temp of 37
  9. certain microbes like different ph. what are the different names for them
    • acidophile
    • neutrophile
    • alkaliphile
  10. facultative anaerobes =
    growth throughout Os likes ll kind
  11. aerobes
    cannot grow without o2
  12. anaerobes
    don't need o2 to grow
  13. binary fission =
    • asexual process of bacterial reproduction
    • E coli need 20 minutes to reproduce
  14. lag phase =
    • organism adjusting to environment
    • not growing yet but getting ready
  15. growth phase =
    `multiply at rapid rate
  16. stationary phase =
    `die rate and growth rate are equal
  17. death phase =
    die rate increases, growth rate drops
  18. 4 steps in bacterial growth phase are =
    • `lag phase
    • growth phase
    • stationary phase
    • death phase
  19. spectrophotometer =
    uses light transmittance to count number of bacterial colonies
  20. coulter counter =
    • uses beam to count cells as they pass infront of it
    • how hospital counts CBC

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