Movement through the membrane
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Movement Through the Membrane. Mr. Luis A. Velázquez Academic Biology. Diffusion. Diffusion Motion of particle for high concentration To low concentration. This causes many substances to move across a cell membrane but does not require energy. What is Osmosis?.

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Movement Through the Membrane

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Movement Through the Membrane

Mr. Luis A. Velázquez

Academic Biology


Diffusion

DiffusionMotion of particle for high concentration

To low concentration. This causes many substances

to move across a cell membrane but does

not require energy.


What is Osmosis?

Osmosis is a type of diffusion.

The movement of water across a semi permeable membrane.

Osmosis is the movement of water through a semi permeable membrane to a higher concentration of solutes .


Passive Transport

  • When material move from areas of high concentration to low concentration they don’t requires energy.

    • Examples

      • Diffusion

      • Facilitate Diffusion

      • Osmosis

Particles

Water


Active Transport

  • When material move from areas of low concentration to high concentration they requires energy.

    • Examples

      • Endocytosis

      • Exocytosis


Types of Endocytosis

  • Phagocytosis

  • Pinocytosis


Phagocytosis


Endocytosis


Exocytosis


Pinocytosis


Interactive Review

http://www.northland.cc.mn.us/biology/BIOLOGY1111/animations/passive1.swf


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