The amino acids which are not prepared in the human body are called.
Correct answer: A. Essential amino acids
- A. Essential amino acids
- B. Non-essential amino acids
- C. Alpha amino acids
- D. Beta amino acids
Explanation
The amino acids which are not synthesized by the human body and must be obtained from the diet are called "Essential amino acids."Essential amino acids are those amino acids that the body cannot produce on its own in sufficient quantities to meet its physiological needs. Therefore, they must be obtained through dietary sources. There are nine essential amino acids for humans: histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine.
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About Macromolecules
Proteins are classified by shape, composition and structure, from primary amino acid sequence to secondary, tertiary and quaternary organisation, and their biological roles are linked to this structure. Enzymes are examined as protein biocatalysts, including active sites, substrate specificity, activation energy, cofactors and factors affecting activity.
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