Which of the Following Statements Is Not True About the Coenzyme

question 22

Multiple Choice

Which of the following statements is not true about the coenzyme tetrahydrofolate (THF) ?

• A)There are six different THF-coenzymes.
• B)The coenzyme is used by enzyme-catalyzing reactions that donate a group containing a single carbon to their substrate.
• C)THF results from the reduction of two double bonds of the precursor vitamin (folate).
• D)Mammals synthesize the vitamin (folate)but bacteria cannot.
• E)Homocysteine methyl transferase and glycinamide ribonucleotide are examples of enzymes that require THF-coenzyme.

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Definitions:

Labour Efficiency Variance

The difference between actual labor hours worked and the standard labor hours expected for the level of production achieved.

Direct Labour Standard

A benchmark for the amount of direct labor time that should be consumed in the production of goods or services, used for costing and efficiency analysis.

Perfection Standard

Ideal or benchmark performance criteria in manufacturing or service delivery that represents the highest possible level of quality or efficiency.

Labour On-costs

Additional costs associated with employing staff, beyond their wages or salaries, including payroll taxes, superannuation, and workers' compensation insurance.