Even within the range from 0° to 45°C, changes in tissue temperature create problems for animals. Most physiological processes, like the biochemical reactions that constitute them, are temperature-sensitive, going faster at higher temperatures (see Figure 6.23). The temperature sensitivity of a reaction or process can be described in terms of Q10, a quotient calculated by dividing the rate of a process or reaction at a certain temperature, RT, by the rate of that process or reaction at a temperature 10°C lower, RT-10:
Q10 can be measured for a simple enzymatic reaction or for a complex physiological process, such as rate of oxygen consumption. If a reaction or process is not temperature-
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This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.