Which Statement Regarding Regulation of Glycolysis and Gluconeogenesis Is FALSE

question 45

Multiple Choice

Which statement regarding regulation of glycolysis and gluconeogenesis is FALSE?

• A) Phosphofructokinase-1 and fructose 1,6-bisphosphatase are prevented from forming a futile cycle by reversible covalent modification.
• B) Hexokinase IV and glucose 6-phosphatase are transcriptionally regulated in hepatocytes.
• C) Phosphofructokinase-1 and fructose 1,6-bisphosphatase are reciprocally regulated by the allosteric regulator, fructose 2,6-bisphosphate.
• D) Binding of fructose 2,6-bisphosphate to phosphofructokinase-1 reduces the affinity of this enzyme for citrate.
• E) The cellular concentration of fructose 2,6-bisphosphate is determined by a bifunctional enzyme that is hormonally regulated.

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Definitions:

Direct Labor-Hours

A measure of the time workers or employees directly spend producing goods or performing services.

Predetermined Overhead Rate

Calculated before the period begins, this rate is used to assign overhead costs to products or job orders based on an activity base.

Variable Manufacturing Overhead

Costs that fluctuate with the level of production output, such as raw materials and direct labor.

Predetermined Overhead Rate

A rate calculated before the accounting period begins, used to allocate manufacturing overhead costs to products.