Matrix

Definition

A matrix is the non-cellular component of tissues that provides structural and biochemical support to surrounding cells. It consists of proteins, glycoproteins, and polysaccharides.

5 Must Know Facts For Your Next Test

1. The extracellular matrix (ECM) is crucial for tissue structure and function.
2. Collagen is a primary structural protein found in the ECM of animal tissues.
3. Proteoglycans in the matrix help to retain water and provide cushioning.
4. The ECM facilitates cell communication through signaling molecules.
5. Matrix metalloproteinases (MMPs) are enzymes that degrade ECM components during tissue remodeling.

Review Questions

• What are the main components of the extracellular matrix?
• How does collagen contribute to the function of animal tissues?
• Why are proteoglycans important in the ECM?

Related terms

Extracellular Matrix (ECM): A network of non-cellular components that provides structural and biochemical support to cells.

Collagen: A structural protein in the ECM that provides tensile strength to tissues.

Proteoglycans:

Molecules composed of proteins and polysaccharides that help retain water within the extracellular matrix.