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Section 4.7

Across
An extracellular structure of plant cells.
Consists of a small core protein with many carbohydrate chains covalently attached.
Relatively thin and flexible wall.
Animal version of the plant cell wall.
Some cells are attached to the ECM by ECM glycoproteins such as...
Down
Wall between the the plasma membrane and the primary wall.
Cell walls are perforated with...
A thin layer rich in sticky polysaccharides called pectins.
Cell-surface receptor proteins.
The most abundant glycoprotein in the ECM of most animal cells.