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5 Written questions

5 Matching questions

  1. scanning electron microscope
  2. cytoplasm
  3. transmission electron microscope
  4. light microscope
  5. electron microscope
  1. a visible light is passed through the specimen and then through glass lenses
  2. b an electron beam scans the surface of the sample. The beam excites electrons on the surface and these secondary electrons are detected. The result is the image
  3. c the interior of a prokaryote cell
  4. d used to study the internal ultra structure of cells.
  5. e focuses a beam of electrons through the specimen or onto its surface.

5 Multiple choice questions

  1. a netlike array of protein filaments that maintains the shape of the nucleus by mechanically supporting the nuclear envelope
  2. encloses the nucleus, separating its contents from the cytoplasm.
  3. develops by the coalescence of smaller vacuoles themselves derived from the GA and ER.
  4. consists of a network of membranous tubules and called cisternae. Site for protein synthesis.
  5. a semi fluid, jellylike substance

5 True/False questions

  1. glycoproteinscomplexes mad of ribosomal RNA and protein


  2. plasma membranesurface lacks ribosomes


  3. contractile vacuolespump excess water out of the cell, thereby maintaining a suitable concentration of ions and molecules inside the cell


  4. vesiclessacs made of membrane


  5. rough ersurface has ribosomes


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