Final answer:
The crucial enzyme for drug and carcinogen metabolism is CYP enzyme. CYP enzymes play a vital role in breaking down and eliminating substances from the body.
Step-by-step explanation:
The enzyme that is crucial for drug and carcinogen metabolism is CYP enzyme. CYP enzymes, also known as cytochrome P450 enzymes, play a vital role in the metabolism of drugs and carcinogens in the liver. These enzymes are responsible for breaking down and eliminating various substances from the body.
Example 1: CYP3A4 is an isoform of the CYP enzyme that is involved in the metabolism of many drugs, including anti-cancer medications like tamoxifen.
Example 2: CYP2C9 is another isoform of the CYP enzyme that is responsible for metabolizing drugs like warfarin, an anticoagulant.