1. Invertase is an enzyme present in the _______.   duodenum   ileum   jejunum   Hint Half-n-half Clue   2. Trypsin is an enzyme contained in _______ juice.   intestinal   pancreatic   gastric   Half-n-half Clue   3. Erepsin is an enzyme contained in _______ juice.   pancreatic   gastric   intestinal   Half-n-half Clue   4. Which enzyme does not act on carbohydrates?   invertase   ptyalin   amylopsin   steapsin   Half-n-half Clue   5. Pepsin is an enzyme contained in _______ juice.   pancreatic   intestinal   gastric   Half-n-half Clue   6. Which enzyme is not present in pancreatic juice?   amylopsin   pepsin   trypsin   steapsin   Half-n-half Clue   7. Which of the following statements about enzymes is false?   Enzymes are required in very small quantities.   Enzymes act on a specific substrate to form a specific product.   Enzymes are vitamins by nature.   Enzymes act best between a narrow range of temperature known as 'optimum temperature'.   Half-n-half Clue