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5 Written questions

5 Matching questions

  1. food vacuoles
  2. scanning electron microscope
  3. contractile vacuoles
  4. vesicles
  5. endomembrane system
  1. a membrane-bounded vesicles formed by phagocytosis
  2. b pump excess water out of the cell, thereby maintaining a suitable concentration of ions and molecules inside the cell
  3. c sacs made of membrane
  4. d 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
  5. e 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 Multiple choice questions

  1. vesicles in transit from one part of the cell to another
  2. focuses a beam of electrons through the specimen or onto its surface.
  3. of the DNA is in an organelle called the nucleus which is bounded by a double membrane
  4. region that is not membrane enclosed
  5. develops by the coalescence of smaller vacuoles themselves derived from the GA and ER.

5 True/False questions

  1. cytoplasma semi fluid, jellylike substance

          

  2. plasma membrane- the boundary of every cell. Functions as the selective barrier that allows sufficient passage of oxygen, nutrients, and wastes to service the entire cell

          

  3. nuclear envelopeencloses the nucleus, separating its contents from the cytoplasm.

          

  4. smooth ersurface lacks ribosomes

          

  5. rough ersurface lacks ribosomes

          

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