Plants concentrate defense chemicals in their leaves, stems, roots, and seeds.

“plants are going to put all the defense chemicals in those parts of the plant because those parts of the plant are the plants that either harvest the sun's energy via photosynthesis that is leaves or transport the glucose produced in the chloroplast through photosynthesis into the root systems or into the other parts of the plant for energy production for cellular work to make fruit to make a seed that is through the foam and the xylem in the stem of the plant and in the roots is where stored energy is in the form of starch complex carbohydrates”