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Vanessa Lopez 14 questions

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Questions in this quiz (14)

  1. 1which of the following is not a distinguishing characteristic of prokaryotic cells?
    1. ATheir DNA is not enclosed withing a membrane
    2. Bthey lack membrane enclosed organelles
    3. Cthey have cell walls containing peptidoglycan
    4. DTheir DNA is not associated with histones.
    5. Enon of the above
  2. 2which of the following is not a true about a gram positive cell wall?
    1. Ait maintain the shape of the cell
    2. Bit is sensitive to lysoszyme.
    3. Cit protects the cell in a hypertonic enironment
    4. Dit contains teichoic acid.
    5. Enon of the above
  3. 3which of the following best describes what happens when a bacterial cell is placed in a solution containing 5% NaCl?
    1. Asucrose will move into the cell from a higher to a lower concentration
    2. Bwater will move out of the cell.
  4. 4The bes definition of osmotic pressure is?
    1. ATe movement of solute molecules from a higher to lower concentration
    2. Bthe force with which a solvent moves across a semi-permeable membrane from a higher to a lower concentration
  5. 5by witch of the following mechanisms can a cell transport a substance from a lower to a higher concentration?
    1. Aactive transport
    2. Bextracellular enxymes
  6. 6which of the following is not a characteristic of the plasma membrane?
    1. Amaintains cell shape
    2. Bcontains proteins
  7. 7all of the following are lacking a cell wall except?
    1. Afungi
    2. Bmycoplasmas.
    3. Canimal cell
  8. 8which of the following statements is true?
    1. Aendospores allow a cell to survive environmental changes.
    2. Bendospores are for reproduction
  9. 9which of the following pairs is mismatched?
    1. Acentrosome food storage
    2. Bmitochondria AtTP production
  10. 10which of the following organelles most closely resembles a prokaryotic cell?
    1. Amitochondrion
    2. Bnucleus

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Quiz on Untitled, created by Vanessa Lopez on 26/09/2016.
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English
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