Question:

All enzymes are made up of proteins and all proteins have three dimensional structures. Secondary structures of protein are sequence of amino acids.

Updated On: Apr 18, 2024
  • If both assertion and reason are true and reason is the correct explanation of assertion.
  • If both assertion and reason are true but reason is not the correct explanation of assertion.
  • If assertion is true but reason is false.
  • If both assertion and reason are false.
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The Correct Option is D

Solution and Explanation

All enzymes are made up of proteins and all proteins do not have 3-dimensional structures as proteins are classified into primary, secondary, tertiary and quaternary structures and only tertiary has 3-dimensional structure. The sequence in which the amino acids are arranged in a protein is called primary structure of protein.
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Concepts Used:

Biomolecules

Biomolecules are the most essential organic molecules, which are involved in the maintenance and metabolic processes of living organisms. These non-living molecules are the actual foot-soldiers of the battle of sustenance of life.

There are four major classes of Biomolecules –  Carbohydrates, Proteins, Nucleic acids and Lipids.

  1. Carbohydrates are chemically defined as polyhydroxy aldehydes or ketones or compounds which produce them on hydrolysis.
  2. Proteins are another class of indispensable biomolecules, which make up around 50per cent of the cellular dry weight. Proteins are polymers of amino acids arranged in the form of polypeptide chains. The structure of proteins is classified as primary, secondary, tertiary and quaternary in some cases.
  3. Nucleic acids refer to the genetic material found in the cell that carries all the hereditary information from parents to progeny. There are two types of nucleic acids namely, deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). The main function of nucleic acid is the transfer of genetic information and synthesis of proteins by processes known as translation and transcription.
  4. Lipids are organic substances that are insoluble in water, soluble in organic solvents, are related to fatty acids and are utilized by the living cell.