Which of the Following Is a Principle of the Fluid

question 81

Multiple Choice

Which of the following is a principle of the fluid mosaic model of cell membrane structure?

• A) Phospholipids form a bilayer that is largely impermeable to water-soluble molecules.
• B) Phospholipids consist of a polar head and a nonpolar tail made of three fatty acid chains.
• C) The lipid bilayer is a solid at body temperature, thus protecting the cell.
• D) All proteins associated with the cell membrane are contained in a fluid layer on the outside of the cell.

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Definitions:

Competitive Price-Taker

A market situation where firms or individuals have no ability to influence the market price of goods or services and must accept the prevailing prices set by supply and demand forces.

Marginal Cost

The increase in cost when producing one additional unit of a good or service.

Average Total Cost

The total cost of production (fixed and variable costs combined) divided by the total quantity of output produced.

Profit

The financial gain realized when the amount of revenue gained exceeds the expenses, costs, and taxes needed to sustain the activity.