Which one of the following is not an enzyme?

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Q: 43 (NDA-I/2009)

Which one of the following is not an enzyme?

question_subject: 

Science

question_exam: 

NDA-I

stats: 

0,46,19,10,5,46,4

keywords: 

{'enzyme': [8, 0, 2, 0], 'amylase': [5, 0, 2, 4], 'somatotropin': [0, 0, 7, 0], 'pepsin': [10, 0, 3, 2], 'trypsin': [1, 0, 0, 0]}

In this question, we are asked to identify which option is not an enzyme. Enzymes are proteins that act as catalysts in biochemical reactions. They help in speeding up the reactions by lowering the activation energy.

Option 1 is "Amylase." Amylase is an enzyme that helps in the digestion and breakdown of carbohydrates such as starch.

Option 2 is "Pepsin." Pepsin is an enzyme that is produced in the stomach and plays a crucial role in digesting proteins.

Option 3 is "Somatotropin." Somatotropin, also known as growth hormone, is not an enzyme. It is a hormone produced by the pituitary gland, which regulates growth and metabolism.

Option 4 is "Trypsin." Trypsin is an enzyme that helps in the digestion and breakdown of proteins in the small intestine.

Therefore, the correct answer is option 3, "Somatotropin," as it is not an enzyme but a hormone.