This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: nutrition and digestion, Subject name: Biochemistry
pH is maximum in 
Select and explain. 
A. Pancreatic secretion, B. Intestinal secretions, C. Salivary secretions, D. Gastric secretion
A: Pancreatic secretion
Answer: A: Pancreatic secretion 
Explanation: The exocrine pancreas secretes about 1000-2500 ml of juice in 24 hours. The fluid is alkaline and contains bicarbonate and enzymes. This secretion is under the control of the hormones, Secretin and cholecystokinin. Secretin is produced under the stimulation of gastric HCl. Secretin produces a secretion with high bicarbonate content. Gastrin stimulates the production of cholecystokinin (CCK), which in turn produces pancreatic secretion rich in enzymes. The major enzymes present in pancreatic juice are amylase, lipase and proteolytic enzymes (trypsin, chymotrypsin, carboxypeptidase, elastase) as their zymogensRef: DM Vasudevan, page no: 312