The And Its Effects On The Human Conditions Under Freezing Temperatures

1807 Words Dec 6th, 2015 8 Pages
Varying environmental climates require organisms to develop defense mechanisms to survive. For conditions under freezing temperatures, each animal has a response. If an animal is unprepared for the extreme situation, the formation of ice leads to a destruction of tissues and most organisms are unable to tolerate even frostbite; which make animals adapt to stay warm and out of the cold. Biochemical studies have examined why amphibians can tolerate freezing temperatures. Many amphibians, though have learned to adapt specifically to these extreme cold environments. The adaptation is freeze tolerance, and many amphibians have undergone this adaptation to protect themselves from the harsh temperatures
Freeze tolerance is the ability to regulate and endure the formation of ice in extracellular compartments while preserving the liquid state of the cytoplasm (Costanzo, Amaral, Rosendale, and Lee, 2013). Freeze tolerance has problems and challenges the amphibians have to overcome to be able to use it. The most difficult problem is the formation of ice and the challenges that come with it. With the ice forming, there are an extreme amount of physiological disruptions that happen inside the body. Tissues damage due to the increased density and size of the ice versus liquid water inside of the tissues. Also, the freezing of blood plasma, which stops the circulatory system from continuing with the deliverance of oxygen and nutrients. As well as, the osmotic defects caused by the…

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