Match List - I with List - II. List - I List - II (a) Protein (i) C=C double bonds (b) Unsaturated fatty acid (ii) Phosphodiester bonds (c) Nucleic acid (iii) Glycosidic bonds (d) Polysaccharide (iv) Peptide bonds
Choose the correct answer from the options given below.
| List - I | List - II | ||
| (a) | Protein | (i) | C=C double bonds |
| (b) | Unsaturated fatty acid | (ii) | Phosphodiester bonds |
| (c) | Nucleic acid | (iii) | Glycosidic bonds |
| (d) | Polysaccharide | (iv) | Peptide bonds |
- (a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)
- (a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)
- (a)-(i), (b)-(iv), (c)-(iii), (d)-(ii)
- (a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)
The Correct Option is B
Solution and Explanation
This question asks you to match biological molecules with their corresponding bonds or structures associated with them. Let's analyze each pair:
- Protein: Proteins are composed of amino acids linked together by peptide bonds. Hence, Proteins correspond to (iv) Peptide bonds.
- Unsaturated Fatty Acid: These fatty acids contain one or more C=C double bonds in their structure, distinguishing them from saturated fatty acids. Therefore, Unsaturated fatty acid corresponds to (i) C=C double bonds.
- Nucleic Acid: Nucleic acids such as DNA and RNA are composed of nucleotides linked by phosphodiester bonds. This connection forms the backbone of nucleic acids. Thus, Nucleic acid matches with (ii) Phosphodiester bonds.
- Polysaccharide: Polysaccharides are carbohydrates composed of long chains of monosaccharide units bonded together by glycosidic bonds. Therefore, Polysaccharide corresponds to (iii) Glycosidic bonds.
Based on this analysis, the correct matching is:
- (a)-(iv)
- (b)-(i)
- (c)-(ii)
- (d)-(iii)
Therefore, the correct answer is (a)-(iv), (b)-(i), (c)-(ii), (d)-(iii).
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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.
- Carbohydrates are chemically defined as polyhydroxy aldehydes or ketones or compounds which produce them on hydrolysis.
- 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.
- 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.
- 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.