Enzymes are protein molecules that function as biological catalysts, accelerating biochemical reactions throughout the human digestive system.
The table below shows information about various digestive enzymes.
Complete the table by identifying the missing information for (i), (ii), (iii), and (iv).
| Type of enzyme | Example | Site of production | Optimum pH |
|---|---|---|---|
| (i) | pancreatic lipase | pancreas | 8.0 |
| protease | (ii) | stomach | 1.5 to 2.0 |
| carbohydrase | pancreatic amylase | (iii) | (iv) |
Explain why pepsin and pancreatic amylase have different optimum pH values, and describe what happens to the activity of pancreatic amylase if it enters the stomach.
