Multiple choice Which of the following statements concerning erythropoietin is true? Erythropoietin is a protein. Hypoxia (a low level of oxygen) inhibits erythropoietin production. Most erythropoietin is made in the pancreas in adults. Erythropoietin stimulates white blood cell production. Erythropoietin detects hypoxia easily. Reveal answer Fill a bubble to check yourself A Correct answer Explanation Erythropoietin is a glycoprotein hormone that controls erythropoiesis, or red blood cell production.