The Cytoplasm of a Certain Cell, Such as a Neuron

question 70

Multiple Choice

The cytoplasm of a certain cell, such as a neuron, already has a high concentration of K+ ions. How can K+ ions continue to enter the cell?

• A) Exocytosis
• B) Active transport
• C) Osmosis
• D) Infusion
• E) Facilitated diffusion

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Definitions:

Variable Costs

Costs that change in proportion to the level of production or sales activities, such as materials and labor.

Utilization

The extent to which a resource, such as equipment or labor, is used for its intended purpose, often expressed as a percentage.

Efficiency

The ratio of the useful output to the total input in any system, reflecting how well resources are utilized without waste.