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Small Intestine

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Why is secretion of pancreatic juice rich in hydrogencarbonate ions helpful in digestion?

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Solution

Pancreatic enzymes cannot work in an acidic environment. Thus, hydrogen carbonate in pancreatic juice helps neutralize the acidity of gastric juice that in turn helps in digestion.

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Q. Fill in the blanks with appropriate words.
Three hormones stimulate release of digestive materials;..........stimulate release of gastric juices;.......... stimulates release of hydrogencarbonate ions; and ..........stimulates release of bile and pancreatic enzymes.

The enzymes in pancreatic juice help in the digestion of

Q. In human pancreas secretes pancreatic juice. Match the pairs of enzyme and its function present in it.

Enzyme	Function
$(1)$ Amylase	(a) Digestion of fat
$(2)$ Trypsin	(b) Digestion of protein
$(3)$ Lipase	(c) Digestion of starch

Q. Which of the following hormone stimulates the secretion of pancreatic juice which is rich in enzymes?

Q. Which of the following helps in partial digestion of fats?
(a) bile
(b) gastric juice
(c) pancreatic juice
(d) amylase

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