Question

Select the correct option.

• A. Thyroid stimulating hormone (TSH) - Water soluble hormone
• B. Prolactin - Lipid soluble hormone
• C. Estrogen - Water soluble hormone
• D. Gonadotropin releasing hormone - Lipid soluble hormone

Answer 1

The correct option is A Thyroid stimulating hormone (TSH) - Water soluble hormone

Hormones can also be classified based on their solubility as
Lipid soluble - steroids and iodothyronines, owing to their chemical composition are not soluble in water but soluble in lipids. These belong to lipid soluble hormones
Water soluble - peptide, protein hormones and amino acid derivatives are hydrophilic (tendency to dissolve in water) and belong to water soluble
$\begin{array}{cc}\text{Water soluble hormones}& \text{Lipid soluble hormones}\\ \text{Amino acid derivative}& \text{Steroid hormones eg: estrogen progesterone,}\\ \text{eg; epinephrine, norepinephrine}& \text{estradiol, cortisol, testosterone}\\ \text{Peptide hormones}& \text{Iodothyronines. Eg: thyroid hormones}\\ \text{Proteins hormones: eg pituitary hormones (TSH and GnRH and prolactin)}& \end{array}$