Virtuаl Lаb - Micrоscоpy – Wet Mоunt (Euglenа) What similarities and differences do you see between the cheek cells and the Euglena? Similarities: Cell Membrane: Both cheek cells and Euglena have a cell membrane that controls the movement of substances in and out of the cell. Differences: Structure and Function: Cheek cells are eukaryotic animal cells with a more irregular shape and lack specialized structures for movement or photosynthesis. Euglena, a protist, has a more elongated shape with a flagellum for movement and chloroplasts for photosynthesis. Organelles: Cheek cells contain organelles such as a nucleus, mitochondria, and lysosomes but lack chloroplasts. Euglena contains a nucleus, mitochondria, and chloroplasts.