Amino acids are the building blocks of proteins. There are 20 standard amino acids that are genetically encoded for protein synthesis. They link together via peptide bonds to form polypeptide chains, which then fold into functional proteins.
Proteins are made from atoms of carbon, hydrogen, oxygen, nitrogen and some also contain sulphur and phosphorus. Molecules made up of these atoms that synthesise protein are known as:
Asked in UPSC Geoscientist 2021 · Topic: Vitamins and Nutrition (Proteins: Types, Amino Acids, Sources, Functions, Deficiency Disorders)
More Biology questions
- Which one of the following foods is not naturally rich in protein?
- Arrange the following animal products in terms of percent protein from highest to lowest : (1) Cow milk (2) Egg (3) Meat (4) Fish Choose the correct answer from the options given below :
- White colour of milk is due to
- Utilization of Soyabean meal is preferred over Groundnut cake or Fish meal because of the following reasons : A. Fish meal is often contaminated with high level of sand, silica and salt. B. The amino acid pattern of Soyabean meal is the most desirable. C. Groundnut cake is costlier than Fish meal and Soyabean meal. D. Digestibility of Soyabean meal protein is around 97%. Choose the correct answer from the options given below :
- Choose wrong statement regarding proteins : We obtain proteins from both animals and plants. Proteins are made of amino acids. About 30 percent of our body weight comes from proteins. Proteins are called building block of our body.
- Which of the following substances is NOT in protein?
- Which one of the following polymers is made of protein ?
- The two elements which are present in proteins but generally absent in carbohydrates are