1. Invertase is an enzyme present in the _______.   duodenum   jejunum   ileum   Hint Half-n-half Clue   2. Trypsin is an enzyme contained in _______ juice.   pancreatic   intestinal   gastric   Half-n-half Clue   3. Which enzyme is not present in pancreatic juice?   amylopsin   pepsin   steapsin   trypsin   Half-n-half Clue   4. Which enzyme acts on starch in the mouth and converts it into maltose?   ptyalin   pepsin   lactase   lipase   Half-n-half Clue   5. Which enzyme does not act on carbohydrates?   steapsin   amylopsin   invertase   ptyalin   Half-n-half Clue   6. The liver secretes a chemical compound called bile, which contains no enzymes.   True   False   7. Which enzyme does not act on proteins?   trypsin   amylopsin   erepsin   pepsin   Half-n-half Clue