Where does the krebs cycle occur in a prokaryotic cell?

In prokaryotic cells the Krebs cycle  takes place in the cytosol.

  This is basically because prokaryotic cells have no mitochondria like the eukaryotic cells.

This is somehow advantageous to the prokaryotes because the  net yield of ATP is higher than in eukaryotes.   Prokaryotes manage to produce 38 molecules of ATP per glucose molecule while eukaryotes produce only 36.

This is because the 2NADH  generated in the mitochondria of eukaryotes contribute  only 2 ATP  instead of 3 because they cannot cross through the inner membrane of the mitochondria while in prokaryotes the 2NADH are free in the cytosol and contribute  3 ATPs each  to yield two more than the eukaryotes.

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its the cell wall and the they are unique to plant

"do a testcross with a homozygous recessive plant."