Channel Proteins in Cell Membranes Serve What Function

question 15

Multiple Choice

Channel proteins in cell membranes serve what function?

• A)They add strength and rigidity to the membrane.
• B)They provide pathways for water and electrolytes to move through cell membranes.
• C)They form the bilayer portion of the membrane.
• D)They allow nonpolar substances to move through the membrane.
• E)They prevent interactions between the nonpolar tails of the phospholipids which gives the membrane its fluidity.

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Definitions:

LIFO Cost Flow Assumption

An inventory valuation method that assumes the most recently produced or acquired items are sold first, last-in, first-out.

FIFO

First In, First Out, an inventory valuation method where the first items placed in inventory are the first sold.

Specific Identification

An inventory valuation method wherein the costs of individual inventory items are tracked and used to determine the cost of goods sold.

Retail Industry

A sector that consists of businesses selling consumer goods directly to customers, involving a range of stores and online platforms offering merchandise from food to fashion.