Glossary & References / Keywords List / Definitions:

Term to be defined Definition Synonyms & Keywords
Cell Wall - "Structure external to the plasma membrane produced by cells; generally rigid and composed primarily of cellulose and lignin in plants, chitin in fungi, and peptidoglycans (diaminopimelic acid, muramic acid, and peptides) in bacteria; it is absent or of various composition in protoctists."(B79 -Plantae (Plants), Mycetae (Fungi), Monera (Bacteria), Animalia (Animals), Proctista(Protozoa) mycological [fungal] and histopathological terms)