Electron Transport System — MCQ Practice
Interactive MCQ Practice
Test your knowledge. Click “Solve” to reveal options, select your answer, then check the result. 6 questions available.
Which of the following statements about the Electron Transport System (ETS) is INCORRECT?
How many ATP molecules are produced from one molecule of FADH through the Electron Transport System, assuming a proton-to-ATP ratio of 4 H per ATP?
Which of the following components of the Electron Transport System is a mobile electron carrier located in the intermembrane space?
Rotenone is a potent inhibitor that blocks electron flow from NADH to ubiquinone. Which complex of the Electron Transport System does rotenone inhibit?
The energy released during electron transport is used to pump protons from the mitochondrial matrix to the intermembrane space. This creates a proton motive force. Which of the following complexes are responsible for pumping protons?
If an uncoupler like DNP (dinitrophenol) is added to mitochondria, what would be the immediate effect on electron transport and ATP synthesis?