JEE MainChemistryBiomoleculesMCQ+4 / −1
Identify the essential amino acids from below: (A) Valine (B) Proline (C) Lysine (D) Threonine (E) Tyrosine Choose the correct answer from the options given below:
- A(A), (C) and (D) only
- B(C), (D) and (E) only
- C(A), (C) and (E) only
- D(B), (C) and (E) only
View written solutionFree
Correct answer: A
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Recall the essential amino acids
Essential amino acids are those which the human body cannot synthesize and hence must be obtained from diet. Common essential amino acids include:(Histidine is also considered essential, especially in growing children.)
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Check each amino acid given in the question
- (A) Valine: Essential ✅
- (B) Proline: Non-essential ❌
- (C) Lysine: Essential ✅
- (D) Threonine: Essential ✅
- (E) Tyrosine: Non-essential ❌
Tyrosine can be synthesized from phenylalanine.
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Collect the essential amino acids from the list
These correspond to:
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Match with the given options
- Option A: and only ✅
- Option B: includes Tyrosine ❌
- Option C: includes Tyrosine ❌
- Option D: includes Proline and Tyrosine ❌
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Final answer The correct option is:
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Comparison with stored correct answer Stored correct answer = A
Derived answer = A
Hence, they agree.
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