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Chemical Coordination and Integration question

2016 · Q15
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Chemical Coordination and Integration question

2016 · Q15

NEETBiologyChemical Coordination and IntegrationMCQ+4 / −1
The amino acid tryptophan is the precursor for the synthesis of
  1. A
    estrogen and progesterone
  2. B
    cortisol and cortisone
  3. C
    melatonin and serotonin
  4. D
    thyroxine and triiodothyronine.
View written solutionFree

Correct answer: C

Tryptophan is a precursor to neurotransmitters serotonin and melatonin. Thyroxine (3,5,3’,5’-tetraiodothyronine) is produced by follicular cells of the thyroid gland. It is produced as the precursor thyroglobulin. Estrogen is biosynthesized from progesterone (in two steps from cholesterol, via intermediate pregnenolone). Cortisone is one of several end-products of a process called steroidogenesis. Cortisol is produced in the adrenal cortex of kidney

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