Category Nuances for plant-cell_wall:

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

Simple Categories for plant-cell_wall:

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