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Efficiency

Efficiency

1. The quality of being efficient or producing an effect or effects; efficient power; effectual agency. The manner of this divine efficiency being far above us. (Hooker)

2. (Science: mechanics) The ratio of useful work to energy expended. Efficiency of a heat engine, the ratio of the work done an engine, to the work due to the heat supplied to it.

Origin: L. Efficientia.


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Re: Food to ATP energy?

... above): The molecular weight of glucose is ~180 grams/mol. That means one mole of glucose weighs 180 grams. One mole of glucose could, at 100% efficiency (theoretical yield) be converted into about 30 moles of ATP. Many biology textbooks will state 38, but they do not account for the cost of ...

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by tmbirkhead
Thu Aug 14, 2014 1:11 am
 
Forum: Cell Biology
Topic: Food to ATP energy?
Replies: 2
Views: 1084

Food to ATP energy?

... proteins and fats. I guess this is a process during which the food looses some of the energy as our digestive system does not operate under 100% efficiency. I also suppose some of the energy is lost during the oxidation of those nutritients as well. The rest of the energy is used to convert ATD ...

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by Viktor
Fri Jun 27, 2014 10:50 pm
 
Forum: Cell Biology
Topic: Food to ATP energy?
Replies: 2
Views: 1084

Propagation and Transfection of BHK cells?

... synthetic polymer , zero charged with an endosome escape mechanism. The advantages compared to other transfection reagents are: high transfection efficiency in hard to transfect cells like kidney fibroblasts as well as in standard cells, you can work with complete media (including FCS) without ...

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by OliviaZ
Tue Apr 08, 2014 10:48 am
 
Forum: Molecular Biology
Topic: Propagation and Transfection of BHK cells?
Replies: 2
Views: 1360

Overexpression

... synthetic polymer , zero charged with an endosome escape mechanism. The advantages compared to other transfection reagents are: high transfection efficiency in hard to transfect cells like Primary macrophages as well as in standard cells, you can work with complete media (including FCS) without ...

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by OliviaZ
Tue Apr 08, 2014 10:45 am
 
Forum: Molecular Biology
Topic: Overexpression
Replies: 2
Views: 1632

MolBio calculations

... to fin. volume 5 ml (i.e. 10×). From that you take 50 ul, which is 1/100th of 5 ml, i.e. 2.5 ng of DNA. and this gave 256 colonies. thus you have efficiency about 100 colonies per 1 ng of DNA if I calculate correctly.

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by JackBean
Wed Dec 04, 2013 8:12 pm
 
Forum: Molecular Biology
Topic: MolBio calculations
Replies: 1
Views: 1797
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