Just as hydrochloric acid is for pepsinogen, so is the :

Just as hydrochloric acid is to pepsinogen, so is

Just as hydrochloric acid is to pepsinogen, so is

Hydrochloric acid at 25^@C is

Just as HCI is for the pepsinogen, so is the (a) bile juice for fats (b) glucagon for glucose (c) haemoglobin to oxygen (d) enterokinase for trypsinogen

Hydrochloric acid at 25^(@)C is