Re: How much time does one rotation of the Calvin-Benson cycle take?

We are talking about chemical reactions. Usually a chemical reaction takes 
femtoseconds to occur, but in this case, several reactions have to be 
catalized in sequence ant this takes more time. It is hard to study a 
living cell but there are some approaches for this kind of study that gives 
us an idea of how fast it happens.
If you give radioactive carbon (CO2 labeled with C14) to a plant, you will 
find this radioactive carbon in proteins, sugars, lipids in only one 
minute. If you decrease the time for as little as 2 seconds, you will find 
some carbon already fixed in an organic form. It is hard to go further due 
to technical limitations, but, belive me, it is very fast.
If you have further questions, let me know.
Bye,
Marco.