4. Which of the following is true regarding the pancreas? A. Pancreatic juice is rich in the enzyme trypsin that breaks down carbohydrates.
B. Pancreatic juice is rich in the enzyme amylase that breaks down fat.
C. Pancreatic juice is rich in the enzyme lipase that breaks down carbohydrates.
D. The pancreas secretes sodium bicarbonate

The true statement regarding the pancreas is that pancreas secretes sodium bicarbonate (option D).

Explanation:

The pancreas is a gland that performs both exocrine and endocrine functions. Within its exocrine function this gland can secrete a solution formed by water and sodium bicarbonate.

The secretion of pancreatic sodium bicarbonate is carried out from the ductal and central cells, providing a hydroelectrolytic solution useful for attenuating stomach acid at the level of the duodenum.

The other options are not correct because:

    A. Trypsin is an enzyme that is responsible for breaking the pethidic bonds of porters, and not carbohydrates.

    B. Pancreatic amylase acts on carbohydrates, not fats.

    C. Lipase in pancreatic juice acts on fats, not on sugars or carbohydrates.

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