The yield of ATP in aerobic respiration is usually lower than the theoretical 36 molecules due to all of the following, except

A) production of lactate.
B) cost to shuttle NADH into the mitochondrion.
C) getting ATP out of the mitochondrion.
D) different yields per NADH molecule.

ATP

Adenosine Triphosphate, a molecule that carries energy within cells, being the main energy currency of the cell for metabolic processes.

Lactate

A compound produced during anaerobic metabolism, often associated with muscle fatigue and exertion.

Mitochondrion

A membrane-bound organelle found in most eukaryotic cells, responsible for producing ATP through the process of oxidative phosphorylation.