Chapetr 4

2 Pages

Biological Sciences
Course Code
Stephen Reid

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Chapter 4-Tissue level of organization In keratinized stratified squamous epithelium, the apical surface layers are dead. These cells lack nuclei and all organelles are filled with a tough, protective protein called keratin. New cells are produced in the basal region of the epithelium and migrate to the apical surface where they fill with keratin, lose their organelles and die. Therefore, there is a tradeoff with keratin in that tissue becomes very strong but the cells must die as a result! The epidermis of the skin consists of ke
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