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Seminal fluid choline originate from the

  • A.Seminal vesicle
  • B.Sertoli's cell
  • C.Leydig cell
  • D.Prostate

Answer: A

The choline of seminal fluid originates from the seminal vesicle. The Florence test, which gives brown needle-like crystals of choline periodide with iodine in potassium iodide, depends on free choline set free from the phosphorylcholine of the seminal vesicle secretion. The Sertoli cells of the testis support sperm formation and the Leydig cells produce testosterone, so neither is a source of choline. The prostate contributes acid phosphatase, citric acid and the P30 protein. So A is correct.

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