Cell membrane is the answer!
<h2>Answer:</h2>
<u>The pituitary gland is called the master gland of the human body. </u>
<h2>Explanation:</h2>
The pituitary gland is called the master gland of the endocrine system present in the human body because this gland controls all the functions of many endocrine glands. The pituitary gland is no bigger than a pea, and is located at the base of the brain which hangs by a thin stalk from the hypothalamus.
Protons are located C) in the nucleus with neutrons. Hope this helps!