Q: 271 (SSC/NA)
question_subject:
Science
question_exam:
SSC
stats:
0,1,5,4,0,1,1
keywords:
{'oxyntic cell': [1, 0, 0, 0], 'lactic acid': [0, 0, 1, 2], 'hydrochloric acid': [1, 0, 3, 0], 'pepsin': [10, 0, 3, 2], 'secretion': [5, 0, 2, 1]}
The correct answer is option 3, Hydrochloric acid. Oxyntic cells, also known as parietal cells, are located in the stomach lining and are responsible for producing and secreting hydrochloric acid. This acid plays a crucial role in the digestion process by activating digestive enzymes and breaking down food particles. Option 1, pepsin, is actually an enzyme that is secreted by chief cells in the stomach and is responsible for breaking down proteins. Option 2, enterokinase, is produced in the small intestine and helps activate other digestive enzymes. Option 4, lactic acid, is not secreted by oxyntic cells and is typically produced during anaerobic metabolism. Therefore, the correct answer is option 3, hydrochloric acid.