MICRO

Card Set Information

Author:
jayme529
ID:
139447
Filename:
MICRO
Updated:
2012-03-03 23:41:33
Tags:
MICRO CHAPTER
Folders:

Description:
MICRO CHAPT 7-9
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user jayme529 on FreezingBlue Flashcards. What would you like to do?


  1. Something nutrient cannot be synthesized
    Growth Factor
  2. Large Molecules quantities play principle role in cell structure and metabolism
    macronutrient
  3. Small molecule quantities trace elements

    maganese, zinc, nickle
    micronutrient
  4. high concentration to lower concentration- molecules will become despersed awau from an area of higher concentration to an area of lower concentration
    Diffusion
  5. diffusion of water from low concentration to high concentration
    osmosis
  6. movement of a molecule from a semipermiable molecule of high concentration to low concentration
    facilitated diffusion
  7. low concentration to high concentration requires energy in the form of ATP
    Active Transport
  8. process by where solid and liquid material are taken into the cell through membrane invagination and engulfment into a vesicle
    endocytosis
  9. time it takes to double its numbers could take 15-20 minutes or days
    Generation Time
  10. Energy / Carbon Source =
    • Phototroph
    • Hetertroph
  11. light for energy - organic molecule
    phototroph
  12. feeds off something else
    hetertroph
  13. Temperature Growth Categories
    • psychrophile
    • thermophile
  14. Low temp - is a microorganism that has a temp below 15c and is capable of growth at 0 degrees c
    psychrophile
  15. a microbe that grows at temperatures greater than 45 degrees c to 80 c
    thermophile
  16. oxygen requirement
    • anaerobe
    • strict or obligate
    • microaerophile
  17. a true anaerobe lacks the meabolic enzyme system for using oxygen gas in respiration. becasue STRICT OR OBLIGATE, also lack the enzyme for prcessing toxic oxygen they cannot tolerate any free oxygen in the immediate environment and will die if exposed to it. (doesnt have catalase)
    anaerobe
  18. does not grow at normal atmospheric concentrations of oxygen but requires a small amount of it in metabolism (1-15%)
    microaerophile
  19. 6-8 level
    PH requirement
  20. symbiotic / nonsymbiotic

    mutualism / synergism
    commensalism / antagonism
    parasitism
    microbial associations
  21. obligatory; dependant both members benefit
    mutualism
  22. the commensal benefits; not harmed
    parasitism
  23. members cooperate share nutrients
    synergism
  24. some members are inhibited or destroyed by others
    antagonism
  25. stages of growth curve
    • lag phase
    • log phase exponential long phase
  26. lag phase
    little growth
  27. live cells a period during which the curve increases geometrically
    log phase exponential long phase
  28. sum total of all chemical reactions
    metabolism
  29. releases energy = large molecules are degraded or broken down into smaller molecules
    catabolism
  30. uses energy = aslo called biosynthesis large molecules are built from smaller molecules which result in the formation of cell structure
    anabolism
  31. produced only when substrate is present
    induced enzymes
  32. always present
    constitutive enzyme
  33. what is the makeup of enzymes how do they work
    most composed of proteins

What would you like to do?

Home > Flashcards > Print Preview