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Amino Acids Simplified Revision Notes

Revision notes with simplified explanations to understand Amino Acids quickly and effectively.

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Amino acids

Introduction

  • Proteins, which are essential for various biological functions in our bodies, are constructed from smaller units known as amino acids.
  • Amino acids serve as the building blocks of proteins and play a crucial role in the formation of different types of proteins, such as those found in skin, muscles, hair, fingernails, and enzymes.

Amino acid structure diagram

Amino Acid Structure

  • Amino acid molecules consist of two important functional groups: the carboxyl group (-COOH) and the amino group (-NHâ‚‚).
  • There are approximately 20 different types of amino acids found in nature, each with a unique "R group" that varies in its atomic composition.

Essential Amino Acids

  • The human body cannot produce all the necessary amino acids required for building proteins.
  • It relies on obtaining certain amino acids, known as "essential amino acids," from dietary protein sources.
  • In total, eight amino acids are considered essential for humans, with an additional two required during childhood.

Variety of Proteins

  • Amino acids can be linked together in different sequences, allowing for the creation of a wide variety of protein molecules.
  • These proteins are tailored to meet the specific needs of the body, contributing to functions like muscle growth, skin maintenance, and enzymatic reactions.

Protein Synthesis

  • The formation of proteins from amino acids occurs through a series of condensation reactions.
  • The sequence of amino acids in a protein is determined by genetic information stored in the nucleus of the cell.

Amino acids

Amino acid structure diagram

Protein structure diagram

Conclusion

  • Amino acids are the fundamental units that makeup proteins, and they are essential for various biological processes in the body.
  • The diversity in amino acid sequences allows for the creation of a wide array of proteins, each serving specific functions necessary for life.
  • Essential amino acids, which the body cannot produce on its own, must be obtained from the diet to support protein synthesis and overall health.
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