Download Active and Passive Transport in Cells – Study Guide ____ 1. Using

Active and Passive Transport in Cells – Study Guide
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1. Using the terms particles, movement, high, low, and concentration, define Diffusion.
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____2 (a) Define Osmosis.
(b) compare and contrast diffusion with osmosis. ______________________________________________
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3. The illustration below shows a membrane large enough to let water molecules pass through, but too small for
the sugar (glucose) molecules to pass through. What best describes the movement of the water molecules
in this illustration?
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4. What best explains the REASON for the motion (shown by the arrows) of water molecules in the illustration
below?
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5. The illustration below shows the passage of particles between the environment and the cell. What best
describes the kind of material/tissue for the cell membrane opening through which the particles are passing.
What is the name of the kind of transport occurring? ____________________________
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____ 6. When particles move up the concentration gradient, they do what? ______________________________
What is the concentration gradient? ____________________________________
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7. When a cell membrane surrounds a particle outside the cell, encloses it in a membrane, and brings it inside the
cell, what process has occurred? ___________________________________________
8. If the concentration gradient for water molecules is higher inside the cell than in its environment, the most
likely way that excess water molecules would depart the cell is by what process? ____________________
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____ 10. ATP (the energy substance for the cell) is most likely to be used by the cell in which process?
11. Compare and contrast endocytosis with exocytosis: _______________________________________
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12. Make a four frame drawing showing endocytosis:
13. Make a four frame drawing showing exocytosis.
14. Provide two examples where exocytosis occurs: ______________________________
_______________________________ Provide two examples where endocytosis occurs: