micro chapter 4

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lcunrod7
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262515
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micro chapter 4
Updated:
2014-02-17 22:14:35
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  1. what is in the cell, is dense gelatinous solution of sugars, amino acids, and salts
    cytoplasm
  2. what is 70-80% water, serves as solvent for materials used in all cell functions
    cytoplasm
  3. what is the region around the center of the cell
    nucleoid
  4. what is single, circular, double-stained DNA molecule that contains all the genetic information required by a cell
    chromosomes
  5. what is free small, circular, double-stained DNA
    plasmids
  6. what is not essential to bacterial growth ad metabolism
    plasmids
  7. what is used in genetic engineering-readily manipulated and transferred from cell to cell
    plasmids
  8. what are resistant to metals, anti-biotics, has unique metabolism (degrade oil, pesticides, and other chemicals)
    nucleoid
  9. what is made of 60% ribosomal RNA and 40% protein
    ribosomes
  10. what consists of two subunits: large and small
    ribosomes
  11. what differ in prokaryotic and eukaryotic cells which include size and number of proteins
    ribosomes
  12. what is found in all cells and is the site of protein synthesis
    ribosomes
  13. inclusions, granules, cytoskeleton, and endospores are called
    bacterial internal structures
  14. there are examples of what: glycogen, startch, PHB (poly-hydroxybutrate), phosphate and sulfer, and magnetosomes
    granules
  15. what are intracellular storage bodies, vary in size, number and content, bacterial cell can use them when environmental sources are depleted
    inclusions and granules
  16. what bacterial internal structure has many bacteria posses an internal network of protein polymers that are closely associated with the cell wall
    cytoskeleton
  17. what bacterial internal structure inert, resting, cells produced by some G+ genera: clostridium and bacillus
    endospores
  18. what are the 2-phase life cycle that endospores go through
    vegetative cell and endospore
  19. what is metabolically active and growing
    vegetative cell
  20. this happens when exposed to adverse environmental conditions; capable of high resistance and very long term survival
    endorpore
  21. what is the formation of an endospore called
    sporulation
  22. what is the hardest of all life forms, withstands extremes in heat, drying, freezing, radiation, and chemicals, not a means of reproduction
    sporulation
  23. what is the return to vegetative growth
    germination
  24. what have a thick coat, are dehydrated, and metabolically inactive
    endospores
  25. what has longevity, resistance to ordinary cleaning methods and boiling, can be killed by pressurized stream at 120C for 20-30 mins
    endospores
  26. what are the three basic shapes of bacteria
    coccus, bacillus, and spirillum
  27. what shape is spherical
    coccus
  28. what shape is rod
    bacillus
  29. what shape is very short and plump
    coccobacillus
  30. what shape is gently curved
    vibrio
  31. what shape is helical, twisted rod
    spirilium
  32. what shape is spring-like
    spirochete
  33. what is a variation in cell shape and size within a single species and have no cell wall
    pleomorphism
  34. what depends of the pattern of division and how cells remain attached after division
    arrangement of cells
  35. what are the two arrangements for cells
    cocci and bacilli
  36. what are singles, diplococci, tetrads, irregular clusters, chains, and cubical packerts
    cocci
  37. what are diplobacilli, chains, and palisades
    bacilli

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