Plant cells differentiate to perform different functions and enable the plant to grow. One cell type is present in young stems and petioles and functions to provide flexible support. This cell type is less resistant to bending forces because it lacks a secondary cell wall and the protein lignin, which causes rigidity in other plant cells.

What differentiated plant cell is being described?

In plants, leaves contain specialized pores used for gas exchange. Each pore is formed by a pair of cells that control its closing and opening. What are these cells called?

Plant cells differentiate to be able to perform different functions and enable it to grow. One cell type has a critical job in supporting the plant. These cells have secondary walls that are further strengthened by a glue-like substance called lignin, which increases the cell's rigidity. At maturity, these cells cannot elongate and are found in regions of the plant that have stopped growing, forming a "skeleton" for the plant.

What type of differentiated plant cell is described?

What are the protein channels in plants that allow high rates of water flow through the membrane via passive transport?

What is the main structural component of a plant cell wall?