How many essential amino acids are there among following?Histidine, isoleucine,leucine,lysine,methionine,phenylalanine,threonine,tryptophan, andvalineCorrect answer is '9'. Can you explain this answer?

Question

Answer

Essential Amino Acids

There are a total of 20 amino acids that are used by the body to synthesize proteins. Out of these 20 amino acids, the human body cannot synthesize 9 amino acids on its own. These amino acids have to be obtained from the diet and hence are called essential amino acids.

List of Essential Amino Acids

The following are the essential amino acids:

- Histidine
- Isoleucine
- Leucine
- Lysine
- Methionine
- Phenylalanine
- Threonine
- Tryptophan
- Valine

Explanation

These amino acids are considered essential because the body cannot produce them on its own, and they must be obtained through the diet. Each of these amino acids plays a vital role in different metabolic pathways in the body. For example, lysine is essential for the production of collagen, which is a vital component of skin, bones, and connective tissue. Similarly, tryptophan is a precursor to serotonin, a neurotransmitter that regulates mood, appetite, and sleep.

Conclusion

Essential amino acids are crucial to maintaining good health and must be included in the diet. A balanced diet containing a variety of protein sources can fulfill the body's requirement of all essential amino acids.

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