Cellmembrane

Surface area to volume ratio -Why are cells so small?
See

Prac-Diffusion and surface area to volume.docx
Complete Biozone pages 71-72 Limitation to cell size
Click here to find out about ratio.

What is diffusion? http://www.youtube.com/watch?feature=player_embedded&v=xuG4ZZ1GbzI

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Cell membrane structure Powerpoint	Cellmembranes_2014.ppt Details Download 824 KB
Fluid Mosaic Model of Cell Membrane
Cellmembrane, ligands,Receptors and phospholipids http://www.youtube.com/watch?v=2Q1i_7zQGA4
Movement across the cell membrane PowerPoint	Movementinmembranes_2013.pdf Details Download 623 KB

Another cell membrane PowerPoint found at: www.worldofteaching.com Cell Transport 2010.ppt

Movement Across the Membrane

Fluid mosaic Model	http://www.youtube.com/watch?v=moPJkCbKjBs&feature=related
Diffusion	http://www.youtube.com/watch?v=gXJMBgyT_hk&feature=related
Osmosis	How_osmosis_works.html http://www.youtube.com/watch?v=sdiJtDRJQEc&feature=related Animation: How osmosis workshttp://highered.mcgraw-hill.com/sites/0072495855/student_view0/chapter2/animation__ Definition for hypertonic, hypotonic and isotonic osmosis.docx Practical Activity - Movement_Rhubarb only.docx
Facilitated Diffusion	http://www.youtube.com/watch?v=PYP4JYL-KQk&feature=related
Active Diffusion	Channel Proteins e.g Na / K pumps http://www.youtube.com/watch?v=_bmp2_T0c7k&feature=related http://www.youtube.com/watch?v=STzOiRqzzL4&NR=1
Exocytosis and Endcytosis	A simple clip explaining exocytosis and endocytosis http://www.youtube.com/watch?v=4gLtk8Yc1Zc&NR=1 Examples of exocytosis and endocytosis http://www.youtube.com/watch?v=K7yku3sa4Y8

Summary worksheet