Zinc, an Essential Trace Element for Most Organisms, Is Present

question 53

Multiple Choice

Zinc, an essential trace element for most organisms, is present in the active site of the enzyme carboxypeptidase. The zinc most likely functions as ________.

• A) a competitive inhibitor of the enzyme
• B) a noncompetitive inhibitor of the enzyme
• C) an allosteric activator of the enzyme
• D) a cofactor necessary for enzyme activity
• E) a coenzyme derived from a vitamin

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Definitions:

Lower Profitability

A situation where a company or business generates less profit or income compared to previous periods or compared to expectations.

Default Risk

The possibility that a borrower will fail to pay back a loan according to the agreed terms.

Debt Financing

The process of raising capital through the sale of bonds or obtaining a loan, where the borrowed amount is expected to be repaid with interest.

Tax-Deductible

Expenses that can be subtracted from gross income to reduce the amount of income that is subject to tax.