Which of the Following Is a Principle of the Fluid

question 69

Multiple Choice

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

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

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Definitions:

Step-fixed Costs

Costs that remain fixed over a range of activity, but jump to a higher level of expense at certain points when activity levels require it.

Variable Cost

Costs that vary directly with the level of production output or business activity, such as materials and labor directly involved in producing a product.

Inflationary Price Increase

A rise in prices across an economy, often due to an increase in the money supply or demand outstripping supply, reducing the purchasing power of money.

Ending Inventory

The value of goods available for sale at the end of an accounting period, calculated as the beginning inventory plus purchases minus cost of goods sold.