In the process some of the mass of the hydrogen atoms is converted into energy in the form of light. The same process occurs in thermonuclear (fusion) bombs. In the Sun the process occurs in a controled manner. In a bomb it happens all at once in a big chain-reaction explosion.
Phloem. Definition. noun. A tissue in a vascular plant that functions primarily in transporting organic food materials (e.g. sucrose) from the photosynthetic organ (leaf) to all the parts of the plant.
Xylem is the type of vascular tissue that moves water and dissolved nutrients from the roots to the leaves. The xylem are â¦ one-way roads, however. No particles can move down the tree through the xylem. Phloem are the tubes in plants responsible for transporting sugars from the leaves to the roots and vice-versa.nswer by Jimbo Wage. Confidence votes 1.2K. The vascular tissue system is one of three tissue systems that make up a plant, the other two tissue systems or ground and dermal, with dermal tissue being the outer layer and the ground tissue making up most of the inside of a plant.