What does non cellular material mean?

Non-cellular material refers to substances that do not consist of cells or cellular components. This can include extracellular matrix, fluids, and various biochemical substances that support cellular functions and structure but are not themselves made up of cells. Examples include proteins, lipids, and polysaccharides found in tissues, as well as blood plasma and interstitial fluid. These materials play essential roles in providing support, facilitating communication, and maintaining the environment for cells.