This chapter includes an introduction, classification, and type of hormones,
as well as their biological functions. This chapter also gives a brief discussion about the
structure, properties, and regulatory action of hormones. Various plant hormones and
their functions have been discussed in this chapter.
Keywords: Cortisol, Osteoporosis, Oxytocin, Plant hormones, Progesterone, Sex
hormones, Testosterone, Vasopressin.
