User:KatPlants01/Ascent of sap

Possible Outline:

-What is xylem?

-Structure of xylem:

-What is sap?

-Where is it produced?

-How does it flow?

Also go through article and make corrections:

(ie. "The ascent of sap in the xylem tissue of plants" --> xylem is incorrect, should say phloem)