Absorption is when the root absorbs water from the soil and transfers it through the xylem. Transpiration is when the water leaves the leaf surface. The water reaches the leaves through xylem
A decrease of ATP production in the Krebs cycle
Most flatworms take in food via their mouth, then move it into a digestive gut that attaches to the digestive structures. The food then breaks down and is absorbed out into the rest of the organism. Some have an anus to remove wastes, but most don't and will simply excrete unused food through the mouth.
The purpose of a cell wall within a plant cell is to provide the cells with protection and structure. It allows also allows the plant to grow tall and strong, cell walls act like a shield and a spine for a plant.