In Which of the Following Is Cell Signaling Prevented

question 22

Multiple Choice

In which of the following is cell signaling prevented?

• A)The nicotine in cigarette smoke binds to and activates the acetylcholine receptor in plasma membranes of neurons in the brain.
• B)Proteins on the surface of cells in taste buds called umami receptors bind to glutamates and nucleotides in food, which changes the membrane potential of these cells and tells the brain, "This is savory."
• C)Allergy medicines, which are called antihistamines, bind to and block histamine receptors to keep fluids in capillaries that would normally be released and cause stuffy noses and watery eyes.

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Definitions:

Natural Comparative Advantage

A situation where a country or region can produce a particular good or service at a lower opportunity cost compared to other countries or regions.

Factor Endowments

Refers to the quantity and quality of resources a country or region has available, such as labor, land, and capital.

Heckscher-Ohlin Theorem

An economic theory stating that countries export what they can most efficiently and abundantly produce.

Labor Intensive

describes industries or production processes that require a large amount of labor relative to capital in the production process.