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Which of the following is an indispensab...

Which of the following is an indispensable amino acid and contains sulphur?

A

Phenylalanine

B

Valine

C

Lysine

D

Methionine

Text Solution

AI Generated Solution

The correct Answer is:
To determine which of the following amino acids is indispensable and contains sulfur, we can follow these steps: ### Step-by-Step Solution: 1. **Understand Indispensable Amino Acids**: - Indispensable amino acids, also known as essential amino acids, are those that the body cannot synthesize and must be obtained through the diet. 2. **List the Given Options**: - The options provided are: - A) Phenylalanine - B) Valine - C) Lysine - D) Methionine 3. **Identify the Indispensable Amino Acids**: - All four options (phenylalanine, valine, lysine, and methionine) are known to be essential amino acids. 4. **Check for Sulfur Content**: - Now, we need to identify which of these amino acids contains sulfur. - **Phenylalanine**: Does not contain sulfur. - **Valine**: Does not contain sulfur. - **Lysine**: Does not contain sulfur. - **Methionine**: Contains sulfur in its structure. 5. **Conclusion**: - Among the given options, methionine is the only indispensable amino acid that contains sulfur. Therefore, the correct answer is **D) Methionine**.
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