Bright-field image of human iiver parenchymal cells, where peroxisomes are stained dark brown with DAB by their catalase activity at pH 10.5, and postosmicated. Cell nuclei are counterstained with light green. Prefixation in buffered formal-calcium, cryostat section of 5 µm.
Normal image of human liver peroxisomes. Bright field light microscopy, immersion lens 63x.