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5 Written questions

5 Matching questions

  1. hypotonic
  2. phagocytosis
  3. passive transport
  4. hypertonic
  5. plasmolysis
  1. a the contraction or shrinking of the cell membrane of a plant cell in a hypertonic solution in response to the loss of water by osmosis.
  2. b the movement of substances across a cell membrane without the use of energy by the cell.
  3. c the process by which a cell engulfs large particles or whole cells, either as a defense mechanism or as a means to obtain food.
  4. d describes a solution whose solute concentration is higher than the solute concentration inside a cell.
  5. e describes a solution whose solute concentration is lower than the solute concentration inside a cell.

5 Multiple choice questions

  1. the transport of substances through a cell membrane along a concentration gradient with the aid of carrier proteins.
  2. in biology, a state that exists when the concentration of a substance is the same throughout a space.
  3. 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.
  4. a small cavity or sac that contains materials in a eukaryotic cell; forms when part of the cell membrane surrounds the materials to be taken into the cell or transported within the cell.
  5. the bursting of a cell.

5 True/False questions

  1. concentration gradienta difference in the concentration of a substance across a distance.

          

  2. ion channela small cavity or sac that contains materials in a eukaryotic cell; forms when part of the cell membrane surrounds the materials to be taken into the cell or transported within the cell.

          

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

          

  4. osmosisthe diffusion of water or another solvent from a more dilute solution (of a solute) to a more concentrated (of the solute) through a membrane that is permeable to the solvent.

          

  5. contractile vacuolethe movement of chemical substances, usually across the cell membrane, against a concentration gradient; requires cells to use energy.

          

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