Which of the following is a structural component of the plant cell wall?

Which of the following is $NOT$ found in the composition of the plant cell wall?

Which substance is present in the middle lamella of a cell which holds or glues the different neighboring cells together?

Which of the following layers is present nearest to the plasma membrane in a plant cell?

The protoplast of a cell without a cell wall is called a .......

Which of the following is $NOT$ a function of the cell wall?
$(I)$ Provides shape to the cell.
$(II)$ Protects the cell from mechanical damage and infection.
$(III)$ Helps in cell-to-cell interaction.
$(IV)$ Provides a barrier to undesirable macromolecules.
$(V)$ Endosmosis of water.