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5 Written questions

5 Matching questions

  1. cell theory
  2. equillibrium
  3. cytoskeleton
  4. concentration
  5. prokaryote
  1. a
    network of protein filaments within some cells that helps the cell maintain its shape and is involved in many forms of cell movement
  2. b the strength of a solution
  3. c when the concentration of a solute is the same throughout a solution
  4. d (biology) the theory that cells form the fundamental structural and functional units of all living organisms
  5. e
    A unicellular organism that lacks a nucleus and membrane bound organelles

5 Multiple choice questions

  1. process by which certain cells can engulf and incorporate droplets of fluid

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

  3. diffusion of water through a selectively permeable membrane

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

  5. thin, flexible barrier around a cell; regulates what enters and leaves the cell

5 True/False questions

  1. phagocyctosis
    the process by which a cell engulfs large particles or whole cells, either as a defense mechanism or as a means to obtain food


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


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


  4. chloroplast
    a jellylike fluid inside the cell in which the organelles are suspended


  5. endocytosis
    the process by which a substance is released from the cell through a vesicle that transports the substance to the cell surface and then fuses with the membrane to let the substance out