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genes

2006-09-18 23:52:54 · 7 answers · asked by Mary M 1 in Science & Mathematics Biology

7 answers

The ability of organisms to withstand heat and cold.

2006-09-18 23:55:08 · answer #1 · answered by WC 7 · 1 0

Thermotolerance is the ability to cope with high temperatures. You can use the term to refer to proteins or whole organisms.

A protein has a complex structure with folds etc. giving it the shape it nees to carry out its biological function. When proteins are heated above a certain temperature, the bonds holding the protein together break down and the protein falls to pieces and is unable to function. A protein which breaks down at relatively low temperature is thermolabile, those which can withstand high temperatures are thermotolerant (there are of course degrees of thermotolerance).

There are thermotolerant organisms such as those that live at hydrothermal vents in the Ocean. Their tolerance comes from the fact that they are made up of thermotolerant proteins.

2006-09-22 11:46:39 · answer #2 · answered by ? 7 · 0 0

Thermotolerance is the property of certain micro-organisms to withstand swift/slow changes in temperature. The temperature may rise/fall suddenly. However, the micro-organism becomes resistant because of certain resistant genes. For e.g., Extremophiles.

2006-09-19 08:54:31 · answer #3 · answered by AR2 2 · 0 0

You are asking about genes, that we have to relate the protein tolerane to the tempertue. Protiens are denaturing in small variation in temperature, some proteins could withstand in upper and lower temperatures.

2006-09-19 06:58:40 · answer #4 · answered by Devaraj A 4 · 0 0

If I remember correctly thermotolerance is the temperature range (maximum to minimum) a biological 'unit', say a protein, can withstand without its function being irreversably destroyed.

You may wish to double check that though..

2006-09-19 06:58:28 · answer #5 · answered by tysonian22 2 · 0 0

I bet it has something to do with being able to withstand high temperatures, but I do not actually know.

2006-09-19 06:54:45 · answer #6 · answered by Anonymous · 0 0

Tolerance to heat

2006-09-19 06:54:40 · answer #7 · answered by charlie6091 2 · 0 0

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