Figure 7.7: Cytokinesis Differs in Animal and Plant Cells (A) A HeLa cell (a type of human cancer cell) undergoing cytokinesis. In this flurorescence micrograph, nuclei are yellow, mitochondria are red, and actin filaments are green. (B) An electron micrograph of a plant cell in late telophase. Plant cells divide differently than animal cells because they have cell walls.