How Many Different Amino Acids Compose All Human Polypeptides (Proteins)

question 2

Multiple Choice

How many different amino acids compose all human polypeptides (proteins) ?

• A)10
• B)15
• C)20
• D)25

---

Definitions:

Anterior Pituitary

The front portion of the pituitary gland, producing and releasing hormones that regulate various bodily functions.

Posterior Pituitary

A part of the brain that releases hormones produced in the hypothalamus, such as oxytocin and vasopressin.

Adrenal Glands

Glands located above the kidneys that produce a variety of hormones, including adrenaline and cortisol, involved in stress response and other physiological functions.

Pancreas

Abdominal gland that secretes pancreatic juice into the intestine and insulin and glucagon from the pancreatic islets into the bloodstream.