Comparison between a scanning election micrograph (SEM top) and transmission electron micrograph (TEM bottom) of cartilage cells. A pair of chondrocytes (pink) are at centre. Chondrocytes are the only cells found in cartilage, a connective tissue that provides structural support. The cells produce and maintain the cartilage's extracellular matrix (blue). In the The TEM image the cell nuclei are blue. In their cytoplasm (pink) are collections of glycogen granules (red), which provide the cell with energy. Magnification: x6000 when printed at 10 centimetres wide. For a series of comparisons between SEMs and TEMs see images C047/7006 to C047/7034.