Question

Chemically hormones are
a) Biogenic amines
b) Proteins, steroid and biogenic amines
c) Proteins only
d) Steroids only

Answer 1

Hint: Hormones are categorised into four structural groups, it can be proteins and peptides, steroids, amino acid derivatives or fatty acid derivatives, which are also called eicosanoids.

Complete answer:
Different hormones play different roles in the human body. Human body cannot function with production of only one type of hormone. Even non-production of one hormone can lead to many complexities. Hormones are the messengers which are directly secreted into the blood. They are produced by different glands present in our body. Some examples of hormones are Insulin, which is a protein hormone. Peptide and protein hormones are, of course, products of translation. When Insulin is not produced, it leads to diabetes. Testosterone is a steroid hormone and also a sex hormone. Steroid hormones are derivatives of cholesterol. There are two groups of hormones derived from the amino acid tyrosine, which are examples of hormones derived from amino acids; Thyroid hormones and Catecholamines. Eicosanoids are a large group of molecules derived from polyunsaturated fatty acids. They include hormones like prostaglandins, prostacyclins, leukotrienes and thromboxanes.Hormones are divided into different classes, steroid; amines; peptide; protein; glycoprotein and eicosanoid. Therefore, hormones cannot only be biogenic amines, proteins only and steroids only.

Hence correct option is B i.e. Proteins, steroid and biogenic amines.

Note: Hormones are the chemical messenger of our body. They affect various processes in the human body. The concentration of hormone secreted is very important. It shall not be too less or too more, else it can lead to abnormalities, disorders and many diseases.