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seen Jul 25 at 16:01

Jul
14
awarded  Yearling
Jun
11
awarded  Enlightened
Jun
11
awarded  Good Answer
Mar
8
awarded  Enlightened
Mar
8
awarded  Nice Answer
Feb
7
awarded  Civic Duty
Dec
20
awarded  Custodian
Dec
20
reviewed Approve suggested edit on Standard Classification of Disease
Nov
4
comment Why is ATP the preferred choice for energy carriers?
It might be worth while having a look at this great article by F. H. Westheimer Why Nature Choose Phosphates, published in Science in 1987
Nov
1
comment How, on a physical level, does ATP confer energy?
ADP also contains a 'high energy' bond where ΔG˚ for hydrolysis is about −30 kJ/mol. I presume you are not implying otherwise. That is, the 'beta-phosphate' may also be thought of as being 'very unstable'. As I understand things, the (free) energy 'currency' of ATP arises from the fact that the ATP = ADP +Pi reaction is maintained far from equilibrium in the cell.
Nov
1
revised Are all body atoms really recycled several times during a life?
Fixed clanger no 2
Nov
1
comment What is Luc Montagnier's research on electromagnetic signals from DNA about?
It seems to me that there is no evidence for fraud here, just as there was is no evidence of fraud in Pauling's famous claim that high doses of Vitamin C cures the common cold. We are surely dealing with yet another case of an imminent scientist making an extraordinary and implausible claim that is not supported by the evidence, and where the experimental results are open to many other much more plausible explanations.
Nov
1
revised Are all body atoms really recycled several times during a life?
added 1724 characters in body
Nov
1
comment Are all body atoms really recycled several times during a life?
In the original answer I said that the original isotope experiments were done with radioactive fatty acids. This, of course, is rubbish. They were done with deuterated fatty acids.
Oct
31
awarded  Custodian
Oct
31
reviewed Leave Open How do the first and second law of thermodynamics adhere to breakdown of glucose?
Oct
31
answered Are all body atoms really recycled several times during a life?
Oct
31
comment How do the first and second law of thermodynamics adhere to breakdown of glucose?
You may wish to research the famous maxim of Clausius: The energy of the universe is constant. The entropy of the universe tends towards a maximum
Oct
31
comment How do the first and second law of thermodynamics adhere to breakdown of glucose?
The second law may be states in a number of ways, but to quote Gordon M Barrow "all [statements of the second law] generalize our knowledge that processes tend to go to a state of equilibrium. The second law sums up our experience with equilibria just as the first sums up our experience with energy". The breakdown of glucose is used to drive the ATP = ADP + Pi reaction away from equilibrium in the direction of ATP synthesis, mainly through oxidative phosphorylation.
Oct
29
comment What is the definition of “dry weight” and “dry cell weight”?
This looks like an interesting paper on the topic you raise