Category Nuances for plant-cell_wall:

• insoluble,
• hierarchical,
• solid,
• complex,
• heterogeneous,
• rigid,
• organized,
• structural,
• dense,
• natural,
• external,
• hard,
• native,
• birefringent,

Simple Categories for plant-cell_wall:

• barrier,
• substrate,
• structure,
• surface,