C3 V C4

a: rubisco ~
b: an old blind cook


"So, RuBisCO is like an old blind cook. It can't tell the difference between salt and sugar. Sometimes he uses salt, sometimes uses sugar, and obviously, the cake is going to be really different. The sugar ones are great, that's the CO2, the salt ones, really bad. So, what C4 does is it employs as a helper and this helper is a different enzyme. It lives in a different room and he can tell the difference. It only takes the sugar off the shelf. So, it only takes carbon dioxide, leaves the oxygen, and he passes the sugar to the cook in the other room where he's just happily away making cakes. And because he haven't got the option anymore, he only uses the sugar. So you only get good cakes and so, you only get the beneficial reaction."

Writer: Helen Woodfield
Date: Dec 6 2014 2:11 PM

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