MUSCLE PHYSIOLOGY

Detailed explanation-1: -The final electron acceptor is oxygen (O2). Oxygen has a high electronegativity; thus, oxygen’s high affinity for electrons makes it an ideal acceptor for low-energy electrons.

Detailed explanation-2: -The final electron acceptor is oxygen (O2), it has a high electronegativity and accepts low-energy electrons. Hydrogen is combined with oxygen, forming water as the final product.

Detailed explanation-3: -Each electron transfer in the ETC requires a reduced substrate as an electron donor and an oxidized substrate as the electron acceptor. In most cases the electron acceptor is a member of the enzyme complex.

Detailed explanation-4: -(B) Cyt a3 is the last electron acceptor over ETC in oxida-tive phosphorylation.

Detailed explanation-5: -Oxygen sits at the end of the electron transport chain, where it accepts electrons and picks up protons to form water.