Answer:
Xylem transfers water up from the roots to the leaves.
Phloem transfers sugars (glucose) produced in the leaves down to the roots to be stored.
Mitochondria produce ATP through process of cellular respiration—specifically, aerobic respiration, which requires oxygen. The citric acid cycle, or Krebs cycle, takes place in the mitochondria. This cycle involves the oxidation of pyruvate, which comes from glucose, to form the molecule acetyl-CoA. Acetyl-CoA is in turn oxidized and ATP is produced.
It is known as "groundwater"
Hope this helps
~Knyx~