A) a molecule of glucose is converted into two molecules of pyruvic acid.
B) four molecules of ATP are produced.
C) two molecules of ATP are consumed.
D) hydrogen atoms are removed from organic molecules.
E) a molecule of carbon dioxide is produced.

A) removal of hydrogen atoms from a substrate molecule by coenzymes.
B) ionization of hydrogen atoms.
C) decreasing the energy level of electrons passing through the electron transport chain.
D) the breaking of carbon-carbon covalent bonds.
E) the acceptance of electrons by oxygen atoms.

A) nutrients.
B) organics.
C) ketones.
D) metabolites.
E) coenzymes.