Last Updated: January 17, 2024 Glycosaminoglycans The most abundant heteropolysaccharides in the body are the glycosaminoglycans (GAGs). The glycosaminoglycans are historically referred to as the mucopolysaccharides given that they were originally characterized in...
Cellular Structure & Organization
Protein, Organelle, and Cell Turnover
Cellular & Molecular Biology, Cellular Structure & Organization, DNA, RNA, and Protein Metabolism
Last Updated: September 18, 2024 Introduction to Processes of Protein, Organelle, and Cell Turnover During the normal course of cellular life macromolecules serve their intended purposes and must be degraded or turned over to ensure their function(s) remain tightly...
Extracellular Matrix (ECM)
Cellular & Molecular Biology, Cellular Structure & Organization
Last Updated: March 2, 2023 Introduction to the Extracellular Matrix A substantial portion of the volume of tissues is extracellular space, which is largely filled by an intricate network of macromolecules constituting the extracellular matrix, ECM. The ECM is...
Biological Membranes and Membrane Transport Processes
Cellular & Molecular Biology, Cellular Structure & Organization
Last Updated: October 17, 2024 Introduction to Biological Membranes Biological membranes are composed of lipid, protein, and carbohydrate that exist in a fluid state. Biological membranes are the structures that define and control the composition of the space that...