Which of the following is not part of the process known as oxidative phosphorylation?(a) Molecular oxygen serves as a final electron acceptor.(b) FADH2 and NADH become oxidized as they transfer a pair of electrons to the electron-transport chain.(c) The electron carriers in the electron-transport chain toggle between reduced and oxidized states as electrons are passed along.(d) ATP molecules are produced in the cytosol as glucose is converted into pyruvate.

Aperson gives a shopping cart an initial push along a horizontal floor to get it moving, and then lets go. the cart travels forward along the floor, gradually slowing as it moves. consider the horizontal force(s) on the cart while it is moving forward and slowing. which of the following statements is correct? (a) both a forward and a backward force are acting on the cart, but the forward force is larger. (b) only a forward force is acting which diminishes with time. (c) both a forward and a backward force are acting on the cart, but the backward force is larger. (d) only a backward force is acting, no forward force.