Glucose is an important sugar in a person's metabolic cycle. Identify the functional group circled. 
Definitions:
Excise Tax
A tax levied on specific goods, services, or transactions, often with the aim of reducing their consumption or raising revenue.
Imported Items
Goods brought into a country from abroad for sale.
Tariff
A tax imposed by a government on goods and services imported from other countries to protect domestic industries or to generate revenue.
Import Quotas
Limits set by a government on the amount or value of certain goods that can be imported into a country, usually to protect domestic industries.
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