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5 Written questions

5 Matching questions

  1. smooth er
  2. chromatin
  3. nuclear lamina
  4. ribosomes
  5. scanning electron microscope
  1. a a complex of proteins and DNA
  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 a netlike array of protein filaments that maintains the shape of the nucleus by mechanically supporting the nuclear envelope
  4. d complexes mad of ribosomal RNA and protein
  5. e surface lacks ribosomes

5 Multiple choice questions

  1. takes cells apart and separates the major organelles and other sub cellular structures from one another.
  2. encloses the nucleus, separating its contents from the cytoplasm.
  3. structures that carry the genetic information
  4. region that is not membrane enclosed
  5. carries out a variety of tasks in the cell such as synthesis of proteins and their transport into membranes and organelles or out of the cell.

5 True/False questions

  1. vesiclesa semi fluid, jellylike substance


  2. transport vesiclessacs made of membrane


  3. cystola semi fluid, jellylike substance


  4. phagocytosisa complex of proteins and DNA


  5. nucleolusregion that is not membrane enclosed