1. Cyanide acts as a poison because it inhibits protein complex IV in the ETC, making it unable to transport electrons.

How would cyanide poisoning affect:

1) The electron transport chain

2) The proton gradient across the inner mitochondrial membrane

3) ATP production

4) Glycolysis and the CAC

2."Our muscles sometimes act a lot like yeast." Thinking about molecules and energy production, how is this statement true? In your answer, be sure to compare and contrast fermentation to aerobic respiration.