Assertion: cell wall's chitin | /r/HasProperty | same substance
Facets:
Source sentences:
text: In bacteria, the cell wall is made of peptidoglycans; among protists, algae have cell walls made of cellulose; in fungi, the cell wall is made of chitin (the same substance that makes the exoskeleton of arthropods); and in plants, the cell wall is also made of cellulose.