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    Cell Biology Protective Layer for Bacteria

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    I am wishing for information on the cell wall. I have read much information from books and/or websites that has provided a plethora of information. Thus, I was wishing for a breakdown from an individual as I thought that it would provide a better understanding than a textbook definition. I understand that it considered protection for the cell, assists with the determinign and/or keeping the shape of the cell, assists in excessive water expansion within the cell, utilized as a protective layer for bacteria. It is composed of primarily are cellulose, hemicellulose and pectin.(from what I gather) That is about where I am at this point. But I have found that there is a primary and secondary cell wall - each has their own function - so I am somewhat confused and looking for guidance.

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    Solution Preview

    Hi, welcome to Brainmass!

    Yes, you are right. The cell wall can consist of a primary cell wall and a secondary cell wall, although NOT all cells have a secondary wall. Only those cells with relatively thick walls have them. Let us discuss each component in detail:

    The Primary Cell Wall - is made up of cellulose, which is a form of complex carbohydrate. In many cells, no further layers are produced (meaning, no secondary cell wall). The primary wall becomes rigid as ...

    Solution Summary

    The expert examines cell biology protective layers for bacteria.