The basement membrane is composed of a combination of proteins like collagen, laminin, and fibronectin, as well as glycoproteins and proteoglycans. It forms a gel-like matrix that provides structural support and acts as a barrier between epithelial and connective tissues.
Cytoplasm.
Cytoplasm
Cytoplasm, but it isn't an organelle.
Something that is solid but not completely solid, like Jello. A semi-solid can be a cream, an ointment, a gel or a lotion. Semisolids have some properties of solids, and some properties of liquids.