The Movement of Substances from Higher to Lower Concentration Across

question 49

Multiple Choice

The movement of substances from higher to lower concentration across a semipermeable membrane that must have a specific protein carrier but no energy expenditure is called

• A)facilitated diffusion.
• B)diffusion.
• C)active transport.
• D)osmosis.
• E)endocytosis.

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Definitions:

Regression

In psychology, a defense mechanism leading an individual to revert to an earlier stage of development in response to stress or conflict; in statistics, a method to determine the relationship between variables.

Projection

A defense mechanism where individuals attribute their unwanted feelings, impulses, or thoughts onto someone else.

Denial

A defense mechanism in which confrontation with a personal problem or with reality is avoided by denying the existence of the problem or reality.

Displacement

In psychology, displacement is a defense mechanism where a person redirects a negative emotion from its original source to a safer, substitute target.