Khan Academy
Khan Academy: Lactic Acid Fermentation
Video lecture presents an overview of lactic acid fermentation and how organisms like lactobacillus convert pyruvic acid to lactic acid and oxidize NADH to NAD+ in the process. [11:21]
Khan Academy
Khan Academy: Biology: Electron Transport Chain
An in-depth discussion of the Electron Transport Chain. [17:16]
Sophia Learning
Sophia: Cellular Respiration Introduction: Lesson 3
This lesson will give a general overview of cellular respiration and describe why it is important. It is 3 of 4 in the series titled "Cellular Respiration Introduction."