Solution:

The sap of the xylem is mostly made up of inorganic substances. The majority of Sulphur and Potassium is found in inorganic compounds. However, the majority of nitrogen is found in organic compounds. Both organic and inorganic chemicals can be detected in phloem sap. Phloem sap contains more organic components because it transports food. However, because phloem and xylem exchange resources, it also contains inorganic compounds.