The following is a plant cell labeled diagram showing that a plant cell is a eukaryotic cell that contains a true nucleus and certain organelles to perform specific functions. As you can see here, the different types of plant cells include collenchyma, sclerenchyma, parenchyma, xylem, and phloem. The following labeled diagram illustrates important components of plant cells: cell wall, cell membrane, nucleus, cell organelles (Mitochondria, Ribosomes membrane, Golgi apparatus, Lysosomes, Vacuole, and Plastids). As per the plant cell labeled diagram, the plant cell is rectangular, with a large vacuole occupying 30 percent of the cell volume.