Both, it takes water and Carbon Dioxide up and it lets out Oxegen.
up
the xylem tubes transport water up and down the stems of plants
It transfers water and nutrients up from the roots to the rest of the plants. I remember this by remembering that between xylem and phloem, the phloem flows down, so the xylem goes up.
The flow is from the roots to the plant so the flow goes up.
adhesion, the water molecules are attracted and therefore "climb" the xylem walls
Xylem is the layer of wood in a tree next to the heartwood (dead center of a tree) and it carries water down and up the tree.
BOTH
the xylem tubes transport water up and down the stems of plants
They contain xylem and phloem. Xylem moves water up and phloem moves glucose up or down.
It transfers water and nutrients up from the roots to the rest of the plants. I remember this by remembering that between xylem and phloem, the phloem flows down, so the xylem goes up.
Transpiration pull causes water to travel up the xylem from the roots. If you goole this it will help =]
The flow is from the roots to the plant so the flow goes up.
adhesion, the water molecules are attracted and therefore "climb" the xylem walls
Xylem is the layer of wood in a tree next to the heartwood (dead center of a tree) and it carries water down and up the tree.
Yes, xylem vessels carry water through the plant.
xylem up phloem down keeps the juicies from phloem down
The xylem take materials up the plant while the phloem take materials down the plant.
Xylem carries water up from the roots to the leaves for the process of photosynthesis. Phloem carries the food/nutrients down to the roots.