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The quantum weirdness powering biology
(http://www.labnews.co.uk/features/quantum-weirdness-powering-biology-05-11-2015/)
Про фотосинтез и навигацию у птиц уже встречала и здесь отражала. Но есть кое-что для меня новое.
"in the 1970’s the German chemist, Klaus Schulten, discovered that some chemical reactions produced pairs of particles (free radicals) whose unpaired electrons remained connected via a peculiar quantum property called entanglement."
"how enzymes work. ... recent research by Judith Klinman at the University of California and Nigel Scrutton at the University of Manchester, among others, has shown that several of them employ a weird quantum trick called tunnelling. Basically, the enzyme encourages a process whereby electrons and protons vanish from one position in a biochemical and instantly rematerialise in another, without visiting any of the in-between places – a kind of molecular quantum
teleportation."
"Finally, we come to the very mechanism of evolution. As mentioned above, Schrödinger suggested that mutations could involve a kind of quantum jump. In their classic DNA paper, Watson and Crick went on to propose that they may involve nucleotide bases switching between alternative structures, a process called tautomerisation that might involve quantum tunnelling. In 1999, we suggested that proton tunnelling might account for a peculiar kind of mutation – called adaptive mutation – that appeared to occur more frequently when they provided an advantage. After a long lull, we are currently attempting to find experimental evidence for proton tunnelling in DNA."
(http://www.labnews.co.uk/features/quantum-weirdness-powering-biology-05-11-2015/)
Про фотосинтез и навигацию у птиц уже встречала и здесь отражала. Но есть кое-что для меня новое.
"in the 1970’s the German chemist, Klaus Schulten, discovered that some chemical reactions produced pairs of particles (free radicals) whose unpaired electrons remained connected via a peculiar quantum property called entanglement."
"how enzymes work. ... recent research by Judith Klinman at the University of California and Nigel Scrutton at the University of Manchester, among others, has shown that several of them employ a weird quantum trick called tunnelling. Basically, the enzyme encourages a process whereby electrons and protons vanish from one position in a biochemical and instantly rematerialise in another, without visiting any of the in-between places – a kind of molecular quantum
teleportation."
"Finally, we come to the very mechanism of evolution. As mentioned above, Schrödinger suggested that mutations could involve a kind of quantum jump. In their classic DNA paper, Watson and Crick went on to propose that they may involve nucleotide bases switching between alternative structures, a process called tautomerisation that might involve quantum tunnelling. In 1999, we suggested that proton tunnelling might account for a peculiar kind of mutation – called adaptive mutation – that appeared to occur more frequently when they provided an advantage. After a long lull, we are currently attempting to find experimental evidence for proton tunnelling in DNA."
