MICROANATOMY

Detailed explanation-1: -The cells which are acted upon by hormones are called target cells. Q. Endocrine glands are known as ductless glands and transport the hormones through the blood to the target tissue/cell. (i) Nutrients, oxygen and hormones from the place, they are absorbed or received to the cells.

Detailed explanation-2: -Hormones activate target cells by diffusing through the plasma membrane of the target cells (lipid-soluble hormones) to bind a receptor protein within the cytoplasm of the cell, or by binding a specific receptor protein in the cell membrane of the target cell (water-soluble proteins).

Detailed explanation-3: -A target cell responds to a hormone because it bears receptors for the hormone. In other words, a particular cell is a target cell for a hormone if it contains functional receptors for that hormone, and cells which do not have such a receptor cannot be influenced directly by that hormone.

Detailed explanation-4: -For instance, steroid hormones, like the sex hormone groups estrogens and androgens, seek out specific target cells and bind to receptor proteins located inside the nucleus of the cell, as shown below.