All of the Following Choices Are True with Regard to Cytochrome

question 34

Multiple Choice

All of the following choices are true with regard to cytochrome P-450 hepatic microsomal enzymes except that they

• A)can be induced to speed up drug metabolism.
• B)can be inhibited to slow down drug metabolism.
• C)exist as numerous isoenzymes.
• D)inactivate drugs through conjugation reactions.

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Definitions:

Gene Expression

The process by which information from a gene is used in the synthesis of a functional gene product, often proteins, which can affect the phenotype of the organism.

Operon

A group of genes in prokaryotes that are transcribed together and regulated by a single promoter and operator sequence, facilitating coordinated expression of genes with related functions.

Transcription

The process of copying a segment of DNA into RNA, particularly messenger RNA, paving the way for protein synthesis in cells.

Phosphorylation

A biochemical process that involves the addition of a phosphate group to a molecule, such as a protein, which can alter the molecule's function.