Specific, non specific

[joshuawattam]

Hi,
I am doing my dissataion on mathematical modelling of cell adhesion.
I have read many arcticles on this including Bell. I am closley following Bells model. However i am a civil engineerer and don not understand certain terms.
Specific, and Non-Specific are two terms which i could get from a dictonary, however after reading the arctiles i have found that these terms can determine the type of model i use.

I was hopeing that some one would be able to explain a little what these terms mean and how they influnece models.

Bells model uses Non-specific, but if i were to explain why i could not.

Thank you for your time

Joshua Wattam