Facilitated Diffusion Is an Important Method for Cells in Obtaining

question 47

Multiple Choice

Facilitated diffusion is an important method for cells in obtaining necessary molecules and removing other ones.Requirements for facilitated diffusion include

• A)The carrier molecule must be specific to the molecule that is transported.The direction of movement is always with the concentration gradient,never against the gradient.
• B)The carrier molecule is nonspecific to the molecule that is transported.The direction of movement is always with the concentration gradient,never against the gradient.
• C)The carrier molecule is nonspecific to the molecule that is transported.The direction of movement is always against the concentration gradient,never with the gradient.
• D)The carrier molecule must be specific to the molecule that is transported and an ATP molecule must be attached to the specific carrier.The direction of movement is always against the concentration gradient,never with the gradient.

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Definitions:

Shortage

A market condition in which the demand for a product exceeds its supply at a particular price.

Demand Curve

A graph showing the relationship between the price of a good and the quantity of that good consumers are willing and able to buy.

Living Wage

A wage level that is high enough to maintain a normal standard of living.

Employment

The condition of having paid work or the number of people employed in an economy or specific sector.