Which Mechanism Enables Substances to Move Through the Cell Membrane

question 164

Multiple Choice

Which mechanism enables substances to move through the cell membrane from a region of higher concentration to a region of lower concentration without any energy expenditure?

• A)Equilibrium
• B)Vesicular transport
• C)Exocytosis
• D)Simple diffusion

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Definitions:

Present Value

The present value of a future amount of money or series of cash flows, using a given rate of return.

Market Rate

The prevailing price or cost of products, services, or labor in a competitive marketplace as determined by supply and demand.

Interest

The cost of borrowing money, typically expressed as a percentage rate over a period of time, or the return on investment for savings.

ITQs

Individual Transferable Quotas, a common tool in fisheries management allowing holders to catch a specific percentage of the total allowable catch.