Answer:
C) Urea
Explanation:
Wohler was a German chemist who was known for his Urea experiment in which he was able to produce organic substance from the inorganic substance.
While he was working on the experiments where he could get cyanide as a product on heating, one day for which he heated the ammonium cyanate (inorganic substance) and got crystals with other physical and chemical properties called urea (organic substance).
Thus, C) Urea is the correct answer.
Proteins are bio-molecules which serve a lot of functions in our body. The various functions of proteins are as under : -
1) Enzymatic function : Majority of enzymes in our body are proteins. Enzymes help in speeding up a biochemical reaction in our body. For example, catalase helps in decomposition of hydrogen peroxide into water and oxygen thereby protecting our body from oxidative damage.
2) Structural function : Many structural parts in our body are made up of proteins. For example, our hair and nails are made up of keratin which is a type of protein.
3) Transportation : Many proteins transport materials from one part of our body to another part of our body. For example, hemoglobin transports oxygen in our body.
Even though there are only a limited number of different amino acids yet a wide variety of proteins exist in an organism. It is possible because the arrangement/sequence and number of amino acids differs in different type of proteins.