A)chiefly provide tensile strength.
B)allow cartilage to resist compression.
C)are linked to microtubules through the plasma membrane.
D)are polysaccharides composed of glucose subunits.

A)Cellulose synthase enzyme complexes are integral membrane proteins.
B)An array of microtubules guides the cellulose synthase complex as it moves in the membrane.
C)The sugar monomers necessary for the synthesis of a cellulose polymer are transported across the plasma membrane.
D)Microtubules are directly attached to the outside surface of the plasma membrane to form tracks that help orient the cellulose polymers.

A)Enzymes embedded in the plasma membrane synthesize the collagen in the extracellular matrix extracellularly.
B)In connective tissue, the intermediate filaments within the cells are important for carrying the mechanical load.
C)Cells can attach to a collagen matrix by using fibronectin, an integral membrane protein.
D)Proteoglycans can resist compression in the extracellular matrix.