Cell Part Cell wall Cell membrane Nucleus Endoplasmic reticulum Mitochondria Animal Cell Plant Cell Fungal Cell Function A rigid layer of polysaccharides lying outside the plasma/cell membrane of the cells of plants, fungi, and bacteria. In the algae and higher plants it consists mainly of cellulose and is made of chitin in fungi. Golgi body Vesicle Lysosome Centrioles Cytoplasm Plastids Vacuole Chloroplast Microfilaments Microtubules