Question

which of the following hormones would bind with a receptor inside the cell?

A. steroid
B. catecholamine
C. peptide

Answer 1

Answer: steroid

There are generally two types of receptors are found in a cell. Some receptors are found embedded in the plasma membrane and are called as cell surface receptors. But some receptors are present in the cytoplasm of a cell and are called as intracellular receptors or cytoplasmic receptors. The glucocorticoids, mineralocorticoids, androgens, oestrogen and progestogens are the steroid hormones which binds with the intracellular receptors after crossing the plasma membrane of the cells.

But, the catecholamine and peptide hormones binds with the cell surface receptors as they can't cross the plasma membrane of the cells.