Monday, January 26th, 2009 | Posted by chanda

Blog Jan. 26, 2009

The cell membrane is composed of phospholipids that are semi-permeable. Some very small elements can diffuse through the membrane. How would particles go through the membrane without the use of energy if they can’t fit through the phospholipids? If no energy is required, what type of transport is occuring–passive or active?

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