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5 Written questions

5 Matching questions

  1. chromatin
  2. glycoproteins
  3. ribosomes
  4. transmission electron microscope
  5. nucleoid
  1. a used to study the internal ultra structure of cells.
  2. b region that is not membrane enclosed
  3. c a complex of proteins and DNA
  4. d proteins that have carbohydrates covalently bonded to them
  5. e complexes mad of ribosomal RNA and protein

5 Multiple choice questions

  1. consists of a network of membranous tubules and called cisternae. Site for protein synthesis.
  2. structures that carry the genetic information
  3. encloses the nucleus, separating its contents from the cytoplasm.
  4. a semi fluid, jellylike substance
  5. the interior of a prokaryote cell

5 True/False questions

  1. scanning electron microscopean 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


  2. cell fractionationtakes cells apart and separates the major organelles and other sub cellular structures from one another.


  3. smooth ersurface lacks ribosomes


  4. nuclear laminaa netlike array of protein filaments that maintains the shape of the nucleus by mechanically supporting the nuclear envelope


  5. electron microscopefocuses a beam of electrons through the specimen or onto its surface.


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