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Notes: The Cell in Its Environment

Notes: The Cell in Its Environment. Copy all underlined portions. Read pgs 102-107. Cellular Exchange. Just like all living things, cells need to eat, drink, and get rid of waste in some way.

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Notes: The Cell in Its Environment

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  1. Notes: The Cell in Its Environment Copy all underlined portions. Read pgs 102-107.

  2. Cellular Exchange • Just like all living things, cells need to eat, drink, and get rid of waste in some way. • Since cells don’t really have mouths, they use their cell membrane to exchange nutrients with their environment. Video

  3. Diffusion • The movement of substances from an area of higher concentration to an area of lower concentration.

  4. Diffusion • From a lot  to a little. Video

  5. Osmosis • The diffusion of water through a semi-permeable membrane or cell membrane. Video

  6. Osmosis • From a lot  to a little through a semi-permeable membrane. Video

  7. Passive Transport • The movement of particles through a membrane without the use of energy.

  8. Passive Transport • Osmosis w/out the use of energy. Video

  9. Active Transport • The movement of particles through a membrane using energy.

  10. Active Transport • Osmosis that requires the use of energy to occur. Video

  11. Endocytosis • The cell membrane surrounds a particle and encloses it in a vesicle for transport into the cell.

  12. Endocytosis • Endo means In.

  13. Exocytosis • Vesicles are formed at the ER or Golgi complex and carry particles to the cell membrane, then out of the cell.

  14. Exocytosis • Exo means Out.

  15. Endocytosis/Exocytosis Video

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