Question
Biology Question on chemical coordination and integration
Chemically hormones are
A
Biogenetic amines only
B
Proteins, steroids and biogenetic amines
C
Proteins only
D
Steroids only
Answer
Proteins, steroids and biogenetic amines
Explanation
Solution
Hormones are chemical messengers produced by the ductless glands (sometimes by neurons) and transported in the circulation to target cells. They regulate metabolic processes. Chemically hormones are of different nature like biogenic amines (like thyroxine, adrenaline etc), proteinaceous or polypeptide (like hypothalamic hormones etc.) and steroids (like sex hormones and adrenocorticoids).