Protein catab

Which of the following hormones stimulates the secretion of hydrochloric acid and pepsinogen in the stomach?

• Secretin

• Gastrin

• Chymotrypsin

Which of the following hormones stimulates the secretion of bicarbonate from the pancreas to the small intestine?

• Secretin

• Gastrin

• Chymotrypsin

Which of the following products will be formed by trypsin's enzymatic cleavage of the peptide TARLAC?

• TA and RLAC

• TAR and LAC

• TARL and AC

Which of the following products will be formed by chymotrypsin's enzymatic cleavage of the peptide PALAWAN?

• PALA and WAN

• PALAW and AN

• PAL and AWAN

Which of the following enzymes have an optimum pH of about 2.0?

• Pepsin

• Carboxypeptidase

• Trypsin

Which of the following statements about protein digestion is true?

• Gastrin triggers the chief cells to release gastric juice

• The increase in pH stimulates the release of zymogens from the pancreas

• Exocrine cells release proteolytic enzymes in the form of trypsinogen, chymotrypsinogen, and procarboxypeptidases into the small intestine.

Which of the following best explains how premature activation of zymogens in the pancreas can result in acute pancreatitis, causing abdominal pain and organ damage?

• Premature activation of zymogens in the pancreas leads to

  the digestion of proteins in pancreatic tissue.

• When zymogens are activated in the pancreas, they become inactive in the small intestine.

• Premature activation of zymogens in the pancreas leads to its denaturation.

Which of the following best describes a key difference between amino acid metabolism and that of carbohydrates and triacylglycerols?

• There is no storage form for amino acids in the body.

• Amino acids cannot be used for energy production.

• Amino acids cannot be converted to acetyl CoA.

Which product is generated when alanine undergoes transamination?

• Citrate

• Pyruvate

• Oxaloacetate

Which product is generated when aspartate undergoes transamination?

• Citrate

• Pyruvate

• Oxaloacetate