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5 Written questions

5 Matching questions

  1. chromosome
  2. nuclear envelope
  3. osmosis
  4. facilitated diffusion
  5. diffusion
  1. a
    movement of specific molecules across cell membranes through protein channels
  2. b
    in a eukaryotic cell, one of the structures in the nucleus that are made up of DNA and protein; in a prokaryotic cell, the main ring of DNA
  3. c
    layer of two membranes that surrounds the nucleus of a cell
  4. d
    process by which molecules tend to move from an area where they are more concentrated to an area where they are less concentrated
  5. e
    diffusion of water through a selectively permeable membrane

5 Multiple choice questions


  1. granular material visible within the nucleus; consists of DNA tightly coiled around proteins

  2. Powerhouse of the cell, organelle that is the site of ATP (energy) production

  3. energy-requiring process that moves material across a cell membrane against a concentration difference

  4. an internal membrane system in which components of cell membrane and some proteins are constructed

  5. describes a solution whose solute concentration is higher than the solute concentration inside a cell

5 True/False questions

  1. isotonic
    (used of solutions) having the same or equal osmotic pressure

          

  2. cell wall
    (biology) the basic structural and functional unit of all organisms

          

  3. vacuole
    cell organelle that stores materials such as water, salts, proteins, and carbohydrates

          

  4. lipid bilayer
    double-layered sheet that forms the core of nearly all cell membranes

          

  5. endocytosis
    the process by which a cell membrane surrounds a particle and encloses the particle in a vesicle to bring the particle into the cell

          

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