Protein is the essential nutrient whose name comes from Greek
name Protos. It is an important form of nutrients we need for the development of our body.
Protein is developed from a long chain of an amino acid.
The amino acid is the building block of proteins. There are ten thousand of an amino acid in the body.
But the scientists has researched only thousands of amino acids. All amino acids have the same basic molecular structure, which includes Carbon, Hydrogen, Oxygen and Nitrogen.
What differentiates amino acids are unique collections of atoms called side groups.
Some amino acids have only one atom in their side group while others can have many atoms linked together.
Therefore, amino acids vary in size and shape; these differences determine their function in the body.
Essential amino acids
There are 9 types of essential amino acids that are not readily available to us.
We get these essential amino acids from the different sources of foods. So to get all types of amino acids we have to eat various types of foods.
Essential amino acids are required for proper functioning of the body are Histidine, Isoleucine, Leucine, Lysine, Methionine, Phenylalanine, Threonine, Tryptophan, and Valine.
Non-Essential amino acids
There are 11 types of non-essential amino acids that are considered as non-essential.
It is considered as non-essential as it is produced in the body. So there is no need to be dependent on another source to get these amino acids.
High and Low-Quality Protein
It is also classified as high and low quality.
High-quality protein is available from animal source as it contains all amino acids that our body need.
And low-quality protein is available from cereals, fruits and vegetables as it contains a low quantity of amino acids that we need.
But soy is the best solution for high protein diet.
Uses Of Proteins
- It is used for the formation of the nail, hair, outer layer of skin as well as the inner layer of skin.
- It is used for the formation of all organs of the body. Also for the development of muscle tissues
- Bones are developed from calcium, but the inner part bone marrow, the soft material inside is made of protein.
- Red blood cells contain hemoglobin, a protein compound that carries oxygen throughout the body. Plasma, the clear fluid in the blood, contains fat and protein particles known as lipoproteins, which ferry cholesterol around and out of the body. Since it is a part of hemoglobin, it helps in circulation of oxygen in the body.
- It is used to develop muscles.
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