If You Are Out in Subfreezing Weather for an Hour

question 169

Multiple Choice

If you are out in subfreezing weather for an hour without protective clothing, it is unlikely that you will die, but if you put a culture of your own nerve cells out in the same weather, they will die.The main reason for this difference is that

• A) nerve cells are more temperature sensitive than any other cell in your body.
• B) homeostatic regulation of your internal body temperature enables you to survive exposure to extreme temperatures.
• C) the cilia on your epidermis protect your internal cells from extreme low temperatures.
• D) nerve cells in culture are not protected by glial cells.
• E) your skin is able to both absorb heat and dissipate heat.

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Definitions:

Potassium Ions

Charged particles of potassium that play key roles in bodily functions, particularly in nerve transmission and muscle contraction.

Glucose

An essential form of sugar that acts as a significant energy provider in living entities and is a part of various carbohydrates.

Hormones

Chemical messengers produced by glands, which travel through the bloodstream to regulate bodily functions and processes.

Peripheral Membrane Proteins

Proteins that are attached to the surface of cellular membranes without being embedded within the lipid bilayer, often involved in signaling pathways or cell adhesion.