What Happens When Diffusion Moves Molecules Across the Plasma Membrane

question 55

Multiple Choice

What happens when diffusion moves molecules across the plasma membrane?

• A) The process is relatively slow and is driven by concentration gradients.
• B) Most molecules are capable of crossing the phospholipid bilayer at any location and at basically the same rate.
• C) The cell gains needed materials and gets rid of excess materials very quickly.
• D) The rate of diffusion cannot be influenced by the cell.
• E) Energy input is required to transport molecules.

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Definitions:

Mirror-Image Perceptions

A phenomenon where conflicting parties perceive each other in similarly negative ways, often escalating conflict due to a mutual misunderstanding of motives.

Mere Exposure Effect

A psychological phenomenon whereby individuals develop a preference for things simply because they are familiar with them.

Mere Exposure Effect

A psychological phenomenon in which people tend to develop a preference for things merely because they are familiar with them.

Bystander Effect

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