Q9 · CSIR NET Chemistry, June 2013
Paper: CSIR NET June 2013 · Subject: Organic Chemistry · Chapter: Natural Products · Topic: Steroids · Marks: 2 · Difficulty: Easy
The biosynthetic precursor for the steroids is
(a)secologanin
(b)shikimic acid
(c)mevalonic acid
(d)$\alpha$-ketoglutaric acid
Answer
Answer: C ✓ checked by 4AB · confidence high
Explanation
Steroids are triterpenoid derivatives (via squalene → lanosterol), and all terpenoids originate from mevalonic acid.
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