Plant sap
Wikipedia.org
Sap is a fluid transported in xylem cells (tracheids or vessel elements) or phloem sieve tube elements of a plant. Fluid found in the vacuoles of other cells is sometimes READ MORE http://en.wikipedia.org/wiki/Plant_sap
What Is a Xylem Cell?
Written by S.E. Smith
Wisegeek.com
A xylem cell is a cell which is responsible for providing support to a plant. Xylem cells also make up the vascular system of plants, co READ MORE http://www.wisegeek.com/what-is-a-xylem-cell.htm