Biology Reference
In-Depth Information
accumulation of the solute. Passive transport can involve simple diffusion or facilitated
carriers including ionophores and channels. Active transport comes in many, often complex
forms. Examples of active transport include primary active transport (uniport), secondary
active transport (co-transport, antiport), and group translocation.
Besides the multitude of transport systems, transport can be accomplished by gap junc-
tions, receptor mediated endocytosis, phagocytosis, pinocytosis, exocytosis, and apoptotic
membrane blebbing.
The last chapter of this topic (Chapter 15) will discuss some biological aspects of
membrane structure including how liposomes can be used for drug delivery. Also, the
'bad' dietary fatty acids (trans fatty acids) will be contrasted with a 'good' fatty acid (the
omega-3 fatty acid docosahexaenoic acid), as they impact human health.
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