Which Is True of the K⁺ Channel but NOT of an Aquaporin

question 11

Multiple Choice

Which is true of the K⁺ channel but NOT of an aquaporin?

• A) Selectivity is achieved through interactions with backbone NH groups.
• B) It contains -helices.
• C) It is an active transporter.
• D) Selectivity is assisted through inverted -helix dipoles.

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Definitions:

Double-Declining-Balance

An accelerated method of depreciation that doubles the regular depreciation rate, allowing for faster depreciation of assets in the early years.

Straight-Line

A method of calculating depreciation or amortization by dividing the difference between an asset's cost and its salvage value by the number of years it is expected to be used.

Depreciation Expense

The allocation of the cost of a tangible asset over its useful life, reflecting wear and tear, deterioration, or obsolescence.

Capital Expenditures

Money spent by a firm on buying or improving hard assets such as land, factories, or equipment.