Go through the following statements. Which of these are correct: 
 
1. Xylem fibres:

Statement 1 : Fibres are living cells.

Statement 2 : Cells are elongated with sharp ends.

Statement 3 : Its wall is highly thickened due to the presence of lignin.

Statement 4 : It conducts the food materials from leaf to the root.

Statement 5 : Due to the lignification, it provides mechanical support to the plant.
 
2. Phloem:

Statement 1 :The transport in pholem is unidirectional.

Statement 2 : The cell walls are made up of lignin.

Statement 3 : Seive elements of phloem are called conducting elements.

Statement 4 : All phloem cells are living except phloem fibres.

Statement 5 : Seive elements are dead cells.