AIM: What is the difference between active and passive transport?

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Presentation transcript:

AIM: What is the difference between active and passive transport? DN: What are the two conditions for diffusion? What is the end result of diffusion? Draw a picture illustrating this. HW: Page 199 #28

Do all things get through the cell membrane? Water Molecules SELECTIVELY PERMEABLE

When will he need energy? Should I go up the gradient or down the gradient http://programs.northlandcollege.edu/biology/Biology1111/animations/transport1.html http://programs.northlandcollege.edu/biology/Biology1111/animations/transport1.html

Types of cell transport Active transport Energy required Against concentration gradient From low to high Passive transport No energy required Down the concentration gradient From high to low Diffusion

Passive Transport Diffusion = movement of O2 & CO2 Facilitated diffusion = alcohols & glucose (needs membrane protein) Osmosis = movement of H2O

Active Transport Phagocytosis Pinocytosis

How can you tell? 3 1 2

Can you tell the difference?

Would you need energy?

Active vs. Passive Transport Active Transport Passive Transport Energy Required Direction Types