Cell growth in plants occurs in phases: meristematic, elongation, and maturation.
Characteristics of the Elongation Phase include:
• Increased vacuolation: The development of a large central vacuole (2).
• Cell enlargement: The overall size of the cell increases (3).
• New cell wall deposition: The addition of cell wall material to accommodate the larger size (4).
Large conspicuous nuclei (1) is a characteristic of cells in the meristematic phase, where cells are actively dividing and have dense cytoplasm with prominent nuclei. In the elongation phase, the nucleus often becomes less conspicuous as the vacuole occupies more space.