New York State Chemistry RegentsNew York State Earth Science Regents

 
Living Environment Regents June 2003 Question 68 PDF Print E-mail

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Enzymes are proteins that speed up the body's chemical reactions. They require a constant temperature to work at their optimum. Just like other proteins, the enzymes denature at extremely high temperatures.

Heat stroke is an uncontrolled increase in body temperature. Exposure to very hot temperatures produces increased sweating, and can produce dehydration, which may lead to reduced sweating and further increase of core body temperature.

Hypothermia is the condition wherein the body temperature drops faster that the body regains heat. This usually occurs when the body is at the temperature below 35 oC. When this happens, the enzymes denature. Thus, the biological processes of the organ systems will fail to work properly until they shut down. This further leads to death of the individual.

 

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