Assertion: brown algae's cell wall | /r/MadeOf | two layers
Facets:
Source sentences:
text: The cell wall consists of two layers; the inner layer bears the strength, and consists of cellulose; the outer wall layer is mainly algin, and is gummy when wet but becomes hard and brittle when it dries out.
text: The cell wall consists of two layers; the inner layer bears the strength, and consists of cellulose; the outer wall layer is mainly algin, and is gummy when wet but becomes hard and brittle when it dries out.
text: The cell wall consists of two layers: an inner one of cellulose and an outer one of mucilaginous pectic material.