Succinate Dehydrogenase (SDH) Is an Enzyme Complex Located Within the Inner

question 3

Multiple Choice

Succinate dehydrogenase (SDH) is an enzyme complex located within the inner mitochondrial membrane that catalyzes the oxidation of succinate to fumarate.  An experiment is conducted to determine if malate alters the rate of SDH activity.  Reaction velocity is measured with and without a fixed quantity of malate as succinate concentration is gradually increased.  Obtained results are shown below. Which of the following is the most accurate statement about malate in this experiment?

• A)It alters the maximal velocity of the reaction
• B)It binds the enzyme at a different site than succinate
• C)It covalently binds the enzyme
• D)It decreases affinity of the enzyme for succinate
• E)It is a competitive inhibitor of the enzyme

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Definitions:

Manufacturing Overhead Applied

The distribution of projected manufacturing overhead expenses across each unit of production.

Underapplied Manufacturing Overhead

A situation where the allocated manufacturing overhead costs are less than the actual overhead costs incurred, creating a discrepancy in cost accounting.

Overapplied Manufacturing Overhead

A case where the overhead costs designated for production are higher than the overhead expenses that actually happened.

Cost of Goods Sold

The direct costs attributable to the production of the goods sold by a company, including both materials and labor costs.