Define the following terms:
$(1)$ Ascent of sap
$(2)$ Phloem transport

(N/A) $(1)$ The upward movement of water and dissolved mineral salts,absorbed by the root system,through the xylem tissue towards the stem and leaves against the force of gravity is called ascent of sap.
$(2)$ The transport of food (sucrose) prepared by photosynthesis from the leaves (source) to other parts of the plant,including the roots (sink),through the phloem tissue is called phloem transport.