Final answer:
Cell II is a plant cell, determined by characteristic features such as chloroplasts for photosynthesis, a cellulose-based cell wall for structure and shape, and a large central vacuole for storage and support.
Step-by-step explanation:
Cell II most likely represents a plant cell due to the presence of chloroplasts, a cell wall, and a large central vacuole. The presence of chloroplasts is indicative of the cell's ability to carry out photosynthesis, a process unique to plants and some protists. The cell wall, primarily composed of cellulose, provides structural support and maintains the shape of the cell, differentiating plant cells from animal cells which lack such a rigid exterior. Furthermore, a large central vacuole is characteristic of plant cells, used for storage and helping to maintain cell rigidity by exerting turgor pressure.