Catalase is a enzyme, substrate is hydrogen peroxide, product is hydrogen and oxygen.
Explanation:
2H2O2 ------O2 + 2H2O
Catalase is an enzyme, O2 and H2O are products, and H2O2 is a substrate. The role of hydrogen peroxide is that it is acting as a substrate upon which enzyme can work. The enzyme is catalase and it play role in increasing the rate of reaction. The hydrogen and oxygen are the product in the reaction. The reaction is producing water and oxygen as product.
Yes you need to call another ambulance because you need to take care of someone with a broken arm , head injury (also unconscious) you would need another ambulance to check on the pregnant woman and man with cuts and scratches.
