In Order for Ions to Move Across the Capillary Endothelial

question 92

Multiple Choice

In order for ions to move across the capillary endothelial cells of the blood -brain barrier, they must

• A) be lipophobic.
• B) be hydrophilic.
• C) move through the endothelial cell layer by transcytosis.
• D) move through pores between endothelial cells.
• E) be transported across endothelial cells.

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Definitions:

Marginal Cost

The cost added by producing one additional unit of a product or service, a crucial concept in economic decision-making and pricing strategies.

Perfectly Competitive

A market structure where many firms offer a homogeneous product, there are no barriers to entry or exit, and all firms are price takers.

Oligopolistic

Oligopolistic refers to a market structure characterized by a small number of large firms dominating the market, leading to limited competition.

Marginal Cost

The extra expense derived from the production of an additional unit of a product or service.