fractured adipose tissue to showcontained lipid (3 center cells).upper image shows empty cells where lipid is dissolved during preparation and only the plasma membrane remains..x 2'000 fat (adipose) tissue, coloured scanning electron micrograph (sem). the fat cells (adipocytes, round) are surrounded by collagen fibres. lipid is purple. empty cells are seen at top right. magnification: x650 when printed at 10 centimetres wide.