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location Ireland
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visits member for 2 years, 2 months
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Sep
12
comment Why do I only breathe out of one nostril?
Does Viagra have any effect?
Aug
21
comment What are the minimal chemical requirements for a food which we all can eat?
Well ... You may have some trouble synthesizing Vitamin B12 by running electricity through a jar of chemicals ... but (as it is a thought experiment) perhaps the famous Miller-Urey experiment is where we should start.
Aug
21
comment Can humans survive without consuming life?
@N0ir As John Lennon put it "Imagine there's no heaven..."
Aug
21
comment Can humans survive without consuming life?
@alex But what about glycogen? Doesn't the breakdown and synthesis of glycogen not require enzymes? And doesn't glycoysis, the TCA cycle and the Respiratory Redox Chain make extensive use of enzymes in turning glucose into "energy"? IMO Chris makes a very good point (to which we may add that no net synthesis of glucose can occur from fatty acids).
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?