Hummingbird. San Mateo County. Photo©CLCase

Biology 230

Succinate Dehydrogenase

(BIOL 230, Lab Experiment 14)

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Notice in the graph that SDH activity follows the rules of enzyme kinetics.
To measure activity, calculate the slope on the fastest part of the line (see the red line).

An alternate presentation

Movie with Inhibitor 1

Movie with Inhibitor 2

 

Which condition inhibited the electron transport chain?

Blue = no electrons to DCIP.
Less blue = electrons to DCIP, depending on where ETC is blocked.
No blue = electrons to DCIP.