Micro Lecture Exam 2

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Author:
Anonymous
ID:
180282
Filename:
Micro Lecture Exam 2
Updated:
2012-10-28 02:09:32
Tags:
mircobiology
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Description:
Bacteria Growth
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  1. Binary Fission
    • Increase in numbers
    • 1. Cell elongates and DNA multiply
    • 2. Production septum (CW & PM)
  2. Lag Phase
    • No increase in numbers
    • -replicating DNA
    • -elongation of cell
    • -maing necessary enzymes and metabolites
  3. Log Phase
    • replication at highest rates
    • -primary and secondary metabolites formed
  4. Stationary Phase
    • Equal amounts of new as dying
    • -declining of nutrients
    • -increase of waste
    • -pH change
    • -use of secondary metabolites
  5. Death Phase
    • More dying than new
    • -no nutrients left
    • -huge amounts of waste
  6. Prolonged Decline
    • live cells use whats left over of the dead cells
    • -canabolism
  7. Psychrophite (temperature)
    optimum temp btwn -5 C and 15 C
  8. Psychrotroph (temperature)
    optimum temp btwn 20 C and 30 C
  9. Mesophile (temperature)
    • optimum temp btwn 25 C and 45 C
    • -body temp
  10. Thermophile (temperature)
    optimum temo btwn 45 C and 70 C
  11. Hyperthermophile (temperature)
    optimum temp of 70 C or higher

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