| Column I( vitamins) | Column II (deficiency disease) |
| a. B1 | Infertility |
| b. D | Scurvy |
| c. E | Beri-beri |
| d. C | Bone formity; |
| Substrate | Enzyme | Site of action | Product | |
| a | Starch | Amylase | Stomach | Maltose |
| b | Protein | Pepsin | Duodenum | Peptones |
| c | Lipid | Lipase | Pancreas | Fat globules |
| d | Sucrose | Invertase | Duodenum | Glucose and Fructose |