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Temperature

Temperature

(Science: chemistry) temperature is proportional to the average random kinetic energy of ideal gases. The degree of hotness or coldness of a body or environment (corresponding to its molecular activity).The somatic sensation of cold or heat.The degree of hotness or coldness in a given environment, usually measured in fahrenheit (F), celsius (C) or Kelvin's (K).

temperature dictates what organisms can survive in different environments.


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Re: sterilization in microwave oven

... units for adequate contact lens disinfection. These units do not boil the lenses as is commonly believed. They all work at much lower levels of temperature than the boiling point of saline. Often around 70 to 80C. Some of them would have worked around 90C for a few minutes as I described to ...

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by brzezinski2
Sun Sep 06, 2009 6:32 am
 
Forum: Microbiology
Topic: sterilization in microwave oven
Replies: 12
Views: 10169

sterilization in microwave oven

... can and do superheat water above 100ºC, but this is neither reliable nor safe. Not reliable because it is impossible to predict accurately what temperature will be reached before it starts boiling (usually "explosively") nor how long you can maintain the temperature. Meaning that for ...

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by canalon
Thu Sep 03, 2009 3:14 pm
 
Forum: Microbiology
Topic: sterilization in microwave oven
Replies: 12
Views: 10169

Re: sterilization in microwave oven

... and travel down. The first water molecules they hit are the ones in the air space above the contact lens saline solution. These molecules reach temperatures well in excess of 100C. In effect they are super heated. This heat is then transferred into the surrounding case and solution below containing ...

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by brzezinski2
Thu Sep 03, 2009 12:01 pm
 
Forum: Microbiology
Topic: sterilization in microwave oven
Replies: 12
Views: 10169

Enzymes Help

... structure of an enzyme to its specificity and catalytic activity. b. Design a quantitative experiment to investigate the influence of pH or temperature on the activity of an enzyme. c. Describe what information concerning the structure of an enzyme could be inferred from your experiment.

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by needshelponstuff
Sun Aug 30, 2009 8:28 am
 
Forum: Molecular Biology
Topic: Enzymes Help
Replies: 1
Views: 73

Re: Why would a comparison of the genomic and cDNA sequences ide

... you get from mRNA(thus it contains only exons).If you mix genomic and cDNA and heat them..they will denaturate..then you lower temperature and cDNA will hybridize with genomic DNA on matching parts-exons..rest are introns...so points where hybridization takes place are points ...

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by zami'87.
Sun Aug 23, 2009 5:18 am
 
Forum: Bioinformatics
Topic: Why would a comparison of the genomic and cDNA sequences ide
Replies: 1
Views: 692
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