Switch Proteins That Bind and Hydrolyze GTP Are Ubiquitous Cell

question 42

Multiple Choice

Switch proteins that bind and hydrolyze GTP are ubiquitous cell regulators in a wide variety of molecular processes. Which of the following statements is NOT true regarding these proteins?

• A) EF-Tu is an example of such proteins.
• B) GTP hydrolysis by the GTPase generally renders it inactive.
• C) Activation of the GTPase involves addition of a phosphate group to its bound guanine nucleotide.
• D) Guanine nucleotide exchange factors generally activate the GTPases.
• E) Guanine nucleotide exchange factors accelerate the release of bound GDP from the GTPases.

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Conversion Cost

The total cost of converting raw materials into finished goods, including labor and overhead expenses.

Process Time

The amount of time required to complete a particular process in a production cycle.

Materials Cost

The expense associated with the raw materials used in the production of goods or services.

Capital Investment Analysis

The process by which management plans, evaluates, and controls investments in fixed assets.