All Are True About Isozymes of Lactate Dehydrogenase (LDH) That

question 31

Multiple Choice

All are true about isozymes of lactate dehydrogenase (LDH) that are present in a number of different tissues EXCEPT:

• A) They have differing K_m values for lactate.
• B) The amount of subunit phosphorylation differs.
• C) They have differing K_m values for pyruvate.
• D) The ratios of A and B subunits differ depending upon the tissue type
• E) They have different kinetic parameters.

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Definitions:

Normal Profit

Normal profit is the minimum level of earnings necessary for a company to remain competitive in the market, covering its opportunity costs.

Market Equilibrium

A state where the supply of goods matches demand, leading to a stable price level for those goods.

Average Total Cost

The sum of all production expenses (both fixed and variable) divided by the overall output.

Total Variable Cost

The cumulative expenses that change in proportion to the level of goods or services produced.