Which Is an Example of Single Carbon Metabolism

question 32

Multiple Choice

Which is an example of single carbon metabolism?

• A)The transfer of a methyl group from cysteine to homocysteine with the simultaneous conversion of vitamin B12 to vitamin B6.
• B)The conversion of homocysteine to methionine,with the simultaneous conversion of methyl vitamin B12 to vitamin B12.
• C)The conversion of methyl folate to folate with the simultaneous conversion of methyl vitamin B12 to vitamin B12.
• D)The conversion of methyl folate to folate with the simultaneous conversion of vitamin B6 to methyl vitamin B6.

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Definitions:

Double-declining-balance

An accelerated depreciation method that doubles the normal depreciation rate.

Salvage Value

The estimated residual value of an asset at the end of its useful life, representing what it could potentially be sold for or scrapped.

Book Value

The net value of a company's assets minus its liabilities and intangible assets, often used to determine a company's actual value.

Double-declining-balance

A method of accelerated depreciation where the depreciation expense decreases over time, doubling the rate of straight-line depreciation.