Question

What are bordered and simple pits?

Answer 1

Pits are a cavity in the secondary cell wall, allowing exchange of substances between adjacent cells. Such pits with borders are called bordered pits. Pits which lack the borders are called simple pits. Bordered pits are structures found in the conductive tissues of many plants that allow for fluids to pass from one cell to another. Simple pits are areas of the tracheid cell wall so thin that nutrient rich solutions can pass through them, to be dispersed throughout the plant.