These cells which are thin and flat about 150 m m in diameter. This micrograph is taken with dark-field microscopy. The prokaryotes belong to the Kingdom Monera and the human epithelial cells belong to the Kingdom Animalia . Fungi are eukaryotes. Note the nucleus and the clear nuclear membrane.
Fungi have cells wall made of chitin.
Bacteria have cell walls composed of peptidoglycans and plants have cell walls which contain cellulose and other complex carbohydrates. Yeast like plants have cells with large central vacuoles . All cells both eukaryotes and prokaryotes have plasma membranes that surround the cytoplasm . Mitochondria are double membrane bound structures found in eukaryotes which are the site of aerobic ATP synthesis. Note in Figure 3 the many mitochondria just inside the plasma membrane.