Most living organisms cannot survive at temperature above $45^{o}$ C. How are some microbes able to live in habitats with temperatures exceeding $100^{o}$ C?

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Solution

The optimum temperature for the survival of the bacterium is about 45 $^{o}$ C. Some of the microbes like bacteria and archaebacteria can survive in high-temperature zones. These organisms are known as thermophiles which can tolerate the temperature of about 100 $^{o}$ C. These organisms have developed certain thermo-resistant enzymes which help them to carry out the normal metabolism at higher temperatures without getting degraded. Some of the bacteria can form bacterial endospores which are resistant structures. These endospores are not degraded or damaged by heat and other stressful environments.

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Most living organisms cannot survive at temperature above 45oC. How are some microbes able to live in habitats with temperatures exceeding 100oC?

Most living organisms cannot survive at temperature above $45^{o}$ C. How are some microbes able to live in habitats with temperatures exceeding $100^{o}$ C?