The Activity of Which Enzyme Is Controlled by Phosphorylation and Dephosphorylation

question 120

Multiple Choice

The activity of which enzyme is controlled by phosphorylation and dephosphorylation of serine residues?

• A) glucokinase
• B) PEP carboxykinase
• C) phosphofructokinase
• D) 3-phosphoglyceraldehyde dehydrogenase
• E) glycogen phosphorylase

---

Definitions:

Futures Contract

A standardized legal agreement to buy or sell a particular commodity or financial instrument at a predetermined price at a specified time in the future.

Underlying Asset

The financial instrument (e.g., stock, bond, commodity, or currency) on which a derivative instrument, such as an option or futures contract, is based.

Corporate Bond Portfolio

A collection of corporate bonds held by an investor or managed by a financial institution.

T-bond Futures

Financial contracts obligating the buyer to purchase U.S. Treasury bonds at a specified price at a future date, used for hedging and investment purposes.