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5 Written Questions

5 Matching Questions

  1. equilibrium
  2. concentration gradient
  3. turgor pressure
  4. diffusion
  5. active transport
  1. a in biology, a state that exists when the concentration of a substance is the same throughout a space.
  2. b a difference in the concentration of a substance across a distance.
  3. c the movement of chemical substances, usually across the cell membrane, against a concentration gradient; requires cells to use energy.
  4. d the pressure that is exerted on the inside of cell walls and that is caused by the movement of water into the cell.
  5. e the movement of particles from regions of higher density to regions of lower density.

5 Multiple Choice Questions

  1. 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. a cell that ingests and destroys (digests) foreign matter or microorganisms.
  3. the process by which a cell membranes surrounds a particle and encloses the particle in a vesicle to bring the particle into the cell.
  4. the 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. the bursting of a cell.

5 True/False Questions

  1. sodium-potassium pumpthe 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.

          

  2. carrier proteina protein that transports substances across a cell membrane.

          

  3. plasmolysisthe bursting of a cell.

          

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

          

  5. ion channeldescribes a solution whose concentration is equal to the solute concentration inside a cell.

          

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