1. Invertase is an enzyme present in the _______.   ileum   jejunum   duodenum   Hint Half-n-half Clue   2. Erepsin is an enzyme contained in _______ juice.   gastric   pancreatic   intestinal   Half-n-half Clue   3. Which enzyme does not act on proteins?   amylopsin   erepsin   pepsin   trypsin   Half-n-half Clue   4. Amylopsin is an enzyme present in the _______.   ileum   jejunum   duodenum   Half-n-half Clue   5. 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   6. Pepsin is an enzyme contained in _______ juice.   pancreatic   intestinal   gastric   Half-n-half Clue   7. Trypsin is an enzyme contained in _______ juice.   intestinal   pancreatic   gastric   Half-n-half Clue