How Many H⁺ Do the First Two Proton Pumps of the Electron

question 69

Multiple Choice

How many H⁺ do the first two proton pumps of the electron transport system transport?

• A)2 each
• B)3 each
• C)4 each
• D)8 each

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Definitions:

Direct Labor-Hour

A measure of the amount of time spent by workers directly involved in the manufacturing process to produce a single unit.

Predetermined Overhead Rate

A rate calculated before the accounting period begins, used to allocate estimated overhead costs to products or job orders based on a chosen activity base.

Machine-Hours

A measurement of the amount of time machinery is operated, used in calculating production costs and efficiency.

Manufacturing Overhead

All manufacturing costs that are not directly attributable to a product, including indirect materials, labor, and other expenses.