Here is a cartoon of the Krebs cycle. Making and coloring it helped me learn the biochemistry!!
Compound names are abbreviated, which is fine, because you have memorized them already. (See previous post.)
The pie wedges making up the cycle are not equivalent in radius - that's because I drew them to show number of carbon atoms in each compound. At the top, for example, acetyl coA donates a two-carbon fragment (the acetyl group) to four-carbon oxaloacetate, yielding six-carbon citrate. Two steps later, a CO2 molecule is split off, yielding a five-carbon molecule (alpha-ketoglutarate)...
The blue teardrop signs show where a water molecule enters a reaction (to be incorporated into organic molecules).
If you would like to color this yourself, here is a coloring page. You can save the image and print out a few copies. (Please don't sell it without my permission.)
Students, when we meet next, let's have a quiz on the Krebs cycle!
cheers,
Morgan G.
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