Which of the Following Conditions Must Be Met If Diffusion

question 19

Multiple Choice

Which of the following conditions must be met if diffusion across a membrane is to occur?

• A) A concentration gradient must be present, and the membrane can't be permeable to the substance being transported.
• B) A concentration gradient must be present, and the membrane must be permeable to the substance that is to be transported.
• C) The membrane must be permeable to the substance that is to be transported.
• D) A concentration gradient must be present.

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Definitions:

Emotion-Focused Coping

A response involving reappraisal of a stressor to reduce its emotional impact.

Problem-Focused Coping

A direct response aimed at reducing, modifying, or eliminating a source of stress.

General Adaptation Syndrome

A theoretical model describing the body's short-term and long-term reactions to stress, incorporating stages of alarm, resistance, and exhaustion.

Exhaustion Stage

The third stage of the general adaptation syndrome, which occurs if the organism fails in its efforts to resist the stressor.