briefly explain what is happens at each step of the process be sure to identify each of the substances (a-d) shown in each step of the process

In the image shown B is the substrate, A is the enzyme C and D are the products.
An enzyme is a biological catalyst. Enzymes are protein molecules that catalyze various reactions in the body. Enzymes speed up the rate of reactions but are not changed in the reaction. Enzymes are specific in action and fit into their substrate as a lock and key.
In the image, we can see that the enzyme (A) exactly fits into the substrate (B). The reaction yields the two products (C) and (D). The enzyme retains its initial shape.
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