Opsonization is a term that refers to an immune process where particles such as bacteria are targeted for destruction by an immune cell known as a phagocyte . The process of opsonization is a means of identifying the invading particle to the phagocyte. Without the opsonization process the recognition and destruction of invading agents such as bacteria would be inefficient.
Flowers are attracted to the light because its wants makes them grow its kinda like humans eating food well as a flower they need water air and sunlight as there food.