EMs of peroxisomes in the liver. Four spherical to ovoid peroxisomes near a supranuclear Golgi complex in a hepatocyte are invested by one membrane, unlike mitochondria (Mi), which are enclosed by two membranes. Glycogen deposits (Gl) in surrounding areas are indicated. 40,000? Below. A higher magnification EM shows details of a peroxisome. Its one plasma membrane is clear, and a dense strand-like deposit (small arrow) occupies its lumen. 100,000×.