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प्रश्न
Enzymes are biocatalysts. They catalyse biochemical reactions. In general they reduce activation energy of reactions. Many physico-chemical processes are enzyme mediated. Which of the following reactions is not engyme-mediated in biological system?
विकल्प
Dissolving CO2 in water
Untwining the two strands of DNA
Hydrolysis of sucrose
Formation of peptide bond
उत्तर
Dissolving CO2 in water
Explanation:
Dissolving CO2 in water is a physical process.
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संबंधित प्रश्न
Find out and make a list of proteins used as therapeutic agents. Find other applications of proteins (e.g., cosmetics, etc.)
Can you describe what happens when milk is converted into curd or yoghurt from your understanding of proteins.
The most basic amino acid is ______.
Proteins perform many physiological functions. For example some functions as enzymes. One of the following represents an additional function that some proteins discharge?
Assertion: Amino acids can be essential or nonessential.
Reason: Nonessential are those which our body cannot make, while essential are those which our body can make.
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.
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.
When more than one polypeptide chains are assembled together then called ______.
Select an appropriate chemical bond among ester bond, glycosidic bond, peptide bond and hydrogen bond and write against the following.
Protein ______
Seliwanoff test and Xanthoproteic test are used for the identification of ______ and ______ respectively.
