Humboldt State University ® Department of Chemistry

Richard A. Paselk

Chemistry 438 - Spring 2011


Week 12

ETS & Oxidative Phosphorylation

Redox Energy Calculation:


Consider the relative reduction pattern of the ETS in the presence of NADH (highly reduced) oxygen (highly oxidized) and low [ADP].

What would a plot of reduction vs. ETS components (e.g. NADH, FADH2, CoQH2, cyt C, etc.) look like? KEY

Calculations of P/O ratios

Calculate the P/O ratio (ATPs produced for each oxygen atom consumed) for the aerobic catabolism of glucose in mammalian fast twitch muscle. Show all work in a table such as we have used in class. KEY

Do this calculation again for glucose in insect flight muscle. KEY

From the Final Exam Study Guide:

Electron Transport System




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Last modified 20 April 2011