Biology

Animala obtain energy through a series of chemical reactions in which sugar and oxygengas are reactants. This process produces water (H2O) and carbon dioxide How might you use a radioactive isotope to find out wether the oxygen in CO2 comes from sugar or oxygen gas?
Question asked by: Erik20

Asked on: 03 Mar 2010

You could ensure that the oxygen around them is a radioactive isotope of oxygen.

Then look at the CO2 that gets made and see what isotope of oxygen it has whether it is the radioactive one or not... this will tell you where it comes from.
By: artiste
Replied at: 04 Mar 2010
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