A)water
B)O₂
C)CO₂
D)CO
E)glucose

A)inner boundary membrane, cristae
B)central boundary membrane, cristae
C)cristae boundary membrane, outer boundary membrane
D)inner boundary membrane, outer boundary membrane
E)cristae, matrix

A)The energy from electrons bound to reduced coenzymes is used to create a steep electrochemical gradient.
B)Electrons bound to NADH are used to generate an H⁺ ion gradient across the inner mitochondrial membrane.
C)Electrons bound to FADH₂ are used to generate a proton gradient across the inner mitochondrial membrane.
D)Electrons bound to NADH are used to generate a proton gradient across the inner mitochondrial membrane.
E)All of these are correct.