Question 1
Paper 2Easy6 marksDuring aerobic respiration, electrons pass along the electron transport chain in the inner mitochondrial membrane. Answer the following questions about the proton gradient and ATP synthesis.
(a)[2]
State how energy released as electrons pass along the electron transport chain is used, and state the direction in which protons are moved across the inner mitochondrial membrane.
(b)[1]
State the difference in proton concentration across the inner mitochondrial membrane that results.
(c)[1]
State the direction in which protons move through ATP synthase.
(d)[2]
Explain how the movement of protons through ATP synthase results in ATP synthesis.