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Name: D Cederlund
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Question:
How do cells stay together?



Replies:
Cells have special molecules on their surfaces that act to attach them to other cells, often in a very specific way, that is, only to certain types of other cells. These molecules are called glycoproteins, a combination of protein and sugar, and the general name for these molecules is extracellular matrix, or cell adhesion molecules. Many of these molecules need calcium to work properly, so scientists often remove calcium from around cells to get them to fall apart.

--ProfBill



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