micro chapter 4

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  1. what are the common characteristics that all living things share
    basic shape, internal content, DNA, chromosomes, ribosomes, and metabolic capabilities
  2. what are the basic shapes of cells
    spherical, cubical, cylindrical
  3. what is the internal content of a cell
    cytoplasm which is surrounded by a membrane
  4. what are the two basic cell types
    eukaryotic and prokaryotic
  5. what cells are found in animals, plants, fungi, and protists
  6. what cells contain membrane bound organelles that compartmentalize the cytoplasm and perform specific functions
  7. what cells contain double-membrane bound nucleus with DNA chromosomes
  8. what cells are found in bacteria and archaea
  9. what cells have no nucleus or other membrane-bound organelles
  10. what characteristic of life has genome composed of DNA packed in chromosomes, produce offspring sexually or asexually
    reproduction and heredity
  11. what characteristic of life has chemical and physical processes
  12. what characteristic of life responds to internal/external stimuli; self-propulsion of many organisms
    movement or irritability
  13. what characteristic of life has cell walls vacuoles, granules, and inclusions
    cell support, protection, and storage mechanisms
  14. what are growth and development, and transport of nutrients and waste
    characteristics of life
  15. what are two external structures of a cell
    appendages and glycocalyx
  16. what are the two major groups of appendages
    motility and attachment or channels
  17. what are the two motility
    flagella and axial filaments
  18. what are the two channels
    fimbriae ( attach cells) and pili (pipe allows two cells to connect and transfer cells to another)
  19. what are the three parts of flagella
    filament, hook, and basal body
  20. what part of the flagella is long, thin, helical structure composed of protein flagellin (<.2 microns) needs electron microscope
  21. what part of the flagella is a curved sheath is hollow in center and bent due to spinning
  22. what part of the flagella is a stack of rings firmly anchored in cell envelope
    basal body
  23. what flagellar arrangements consist of a single flagellum at one end
  24. what flagellar arrangements consist of small bunches emerging from the same site
  25. what flagellar arrangements consist of flagella at both ends of cell
  26. what flagellar arrangements consist of flagella dispersed over surface of cell
  27. what are periplasmic flagella
  28. what flagella response is to chemotaxis; positive and negative
    chemical stimuli
  29. what flagella response is to phototaxis
    light stimuli
  30. counterclockwise = forward, run
    clockwise = change direction, tumble
    flagella responses
  31. what flagella is internal, enclosed in the space between the outer sheath and the cell wall peptidoglycan
    periplasmic (spirochaetes)
  32. what flagella produce cellular motility by contracting and imparting twisting or flexing motion
    periplasmic (spirochaetes)
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micro chapter 4
2014-02-18 01:31:52

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