Correct Answer - Option 1 : Tryptophan
Concept:
Amino acid :
- These are building blocks of proteins.
- More than 300 amino acids exist in nature but only 20 amino acids form proteins.
- The 20 amino acids are called 20 alphabets of bioprotein language.
- 20 types of amino acids form protein, protein is a heteropolymer.
Types of Amino Acids
1. Nonessential amino acids: These amino acids are produced naturally by the body and don’t matter the food you are having.
The following are examples of nonessential amino acids:
- Alanine
- Asparagine
- Aspartic acid
- Glutamic acid
2. Essential amino acids: These amino acids come from the food we eat. it can't be produced by the body.
The following are essential amino acids:
- Histidine
- Isoleucine
- Leucine
- Lysine
- Methionine
- Phenylalanine
- Threonine
- Tryptophan
- Valine
3. Conditional amino acids: These are usually not essential to everyday living but are important when you're sick, injured, or stressed.
The following are Conditional amino acids :
- Arginine
- Cysteine
- Glutamine
- Tyrosine
- Glycine
- Ornithine
- Proline
- Serine
