Xylem is one of the two types of transport tissue in vascular plants,phloem being the other.
The basic function of xylem is to transport water from roots to shoot and leaves,but it also transports some nutrient.
In vascular plants,phloem is the living tissue that carries organic nutrients (known as photosynthesis) , in particular,sucrose,asugar,to all parts of the plant where needed.
Photosynthesis is a process that happens in the leaves of plants where sunlight,water,and carbon dioxide (from the air)
are converted into food and oxygen.
Chlorophyll is a chemical that is in leaves throughout the year and that helps them make food through photosynthesis because plants need energy to grow and live.
They get this energy from the nutrients in the soil,water is need since it carries the nutrients from the roots to the top of the plant .
Light is a from of energy also that helps the plants to maun facture it is own food.