The Temperature Effect

In Chapter 5, target molecular weights for various enzymes were calculated from the 37%-doses measured at room temperature, and the results compared with the true molecular weights of the irradiated biomolecules. As there is no rational reason to attach any special significance to the results obtained at room temperature, the dependence of inactivation rate on the temperature during exposure will now be examined. In some ways, this chapter could be considered as an extension of the target theory; furthermore, some additional features of the indirect effect (see Chapter 6) will become apparent, the significance of which is enhanced by the observation of a remarkable uniformity in the temperature-dependence of many biological systems under irradiation.

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