671. pH of stomach is:
A. 1-2
B. 4-5
C. 7.4
D. 8-10
E. None of the above

672. Which of the following statement is FALSE?
A. Carbonic anhydrase is found in gastric parietal cells
B. II’ is secreted into stomach by active HIK antiport in the gastric parietal cells
C. Cl-is actively transported into the stomach by gastric parietal cells
D. Gastric venous blood is alkalinic after a meal.
E. All of the above

673. Which of the following causes increased gastric secretion by stimulating vagus nerve?
A. Alcohol
B. Hypoglycemia
C. Caffeine
D. All of the above
E. None of the above

674. pH of duodenum
A. 1-2
B. 4-5
C. 6-7
D. 8-9
E. None of the above

675. Volume of pancreatic juice produced daily is:
A. 500 ml
B. 1000 ml
C. 1500 ml
D. 2000 ml
E. 2500 ml

676. Which of the following is TRUE?
A. Trypsin can activates all pancreatic enzymes
B. Pancreas normally has trypsin inhibitor to prevent autolysis
C. Secretin stimulates pancreatic duct to increase alkaline content of pancreatic juice
D. CCK stimulates pancreatic acinar to increase enzyme content of pancreatic juice
E. All of the above

677. Amount of bile secreted daily:
A. 500 ml
B. 1000ml
C. 1500 ml
D. 2000 ml
E. 2500 ml IS.

678. Which of the following is TRUE?
A. 50% ofbile salts are reabsorped in enterohepatic circulation through Na/bile acid cotransport.
B. Primary bile salts are converted to secondary bile salts in the colon
C. Conjugation of bilirubin render it more fat soluble
D. Unconjugated bilirubin is partly excreted in urine
E. All of the above

679. Which of the following causes conjugated hyperbilirubinemia?
A. Hemolytic anaemia
B. Reduced bilirubin uptake into hepatocytes
C. Reduced intracellular (hepatic) protein binding to bilirubin
D. Biliary obstruction
E. All of the above

680. Amount of intestinal secretion daily:
A. 500ml
B. 1000ml
C. 1500ml
D. 2000ml
E. 2500ml