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GK QUESTION#3588

Which of the following groups represents essential amino acids?

  1. AHistidine, isoleucine, leucine, lysineCorrect answer
  2. BAlanine, arginine, asparagine, aspartic acid
  3. CAlanine, isoleucine, leucine, lysine
  4. DGlycine, proline, serine, and tyrosine
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Answer

A. Histidine, isoleucine, leucine, lysine

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Explanation

Histidine, isoleucine, leucine and lysine are all essential amino acids for humans. They must be obtained from the diet. Each other listed group includes amino acids that humans can ordinarily synthesize.

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