Plant vs Animal Cells

We compare plant cells and animal cells under a microscope to see how they differ. Cheek cells are dyed with methylene blue to make the observations possible. Biology - Cells And DNA - Learning Points. Almost all cells are invisible to the naked eye, so we need to use microscopes to observe them. Stains, such as methylene blue, are used in laboratories to make thin, transparent specimens visible under microscopes. Plant and animal cells contain key organelles that have specific functions. Cells can vary greatly as they are adapted to their functions. A Twig Experiment Film. Let students experience real experiments in lab conditions anywhere, from setup, method all the way through to analysis and real-world application.