Multiple choice

Which steriod increases red blood cells, which carry more oxygen.

  1. androstenediol

  2. Bromantan

  3. Erythropoietin

  4. Probenecid
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Erythropoietin (EPO) is a hormone that stimulates the bone marrow to produce more red blood cells. While chemically a peptide hormone rather than a steroid, it is often grouped with performance-enhancing substances in sports because it increases oxygen delivery to muscles.

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