<span>
Val-Ser-His is an example of
tripeptide (containing three amino acids). As we know proteins are bio-polymers made up of small repeating units called amino acids. Amino acids on condensation reaction produces polypeptides. These polypeptides can be hydrolyzed to its corresponding amino acids when reacted with water in the presence of acid. The tripeptide given in problem upon hydrolysis produces three amino acids i.e.
Valine,
Serine and
Histidine (Figure).</span>
1. Hours
2. 2 hours
3. 1 hour and 50 minutes
4. Hours
5. 300 minutes
6. 7 hours
7. 240 minutes is the same as 4 hours
An endothermic reaction needs energy to proceed, such energy is usually taken from the environment surrounding the reaction. In the typical case this energy is expressed as heat. Heat is an state of atomic activity, that energy is transferred to an ENDOthermic reaction so the initial threshold of reaction is overcome and the final reaction can occur.