If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content
ENE‑2 (EU)
ENE‑2.D (LO)
ENE‑2.D.1 (EK)
ENE‑2.D.2 (EK)
The extracellular matrix and cell wall. Collagen, integrins, fibronectin, cellulose, and pectin.
Sort by:
Biology is brought to you with support from the Amgen Foundation