Question

Identify the correct statements regarding enzymes

• A. Enzymes are specific biological catalysts that can normally function at very high temperature $\left(T \sim 1000\,K\right)$
• B. Enzymes are specific biological catalysts that the posses well - defined active sites
• C. Enzymes are specific biological catalysts that can not be poisoned
• D. Enzymes are normally heterogeneous catalysts that are very specific in their action

Answer 1

Answer: (B)

Enzymes are specific biological catalysts that the posses well - defined active sites

Answer 2

A) Enzymes function inside our body, therefore they function best at $310\,K$, the temperature of the human body. Therefore, they will not function at $T=1000\,K$. B) Enzymes are highly specific. But they work in the same medium as target food particles. So they are homogenous catalysts. C) Enzymes can be poisoned by the presence of certain substances which react with their active functional groups rendering them useless. D) Enzymes are highly specific biological catalysts that possess well-defined active sites containing certain functional groups.