Which of the Following Is the Mechanism of Action of 5-Fluorouracil

question 38

Multiple Choice

Which of the following is the mechanism of action of 5-fluorouracil?

• A) competitive inhibitor of dihydrofolate reductase
• B) suicide substrate for thymidylate synthase
• C) competitive inhibitor of ribonucleotide reductase
• D) non-competitive inhibitor of thioredoxin reductase
• E) none of the above

---

Definitions:

Revenue Accounts

Accounts used to record the income generated from the sale of goods or services in the normal course of business.

Expense Accounts

Accounts in financial accounting that track the costs of operating a business, including costs for materials, labor, and overhead.

Permanent Accounts

These are balance sheet accounts whose balances are carried forward from one accounting period to the next, including assets, liabilities, and equity accounts.