Page 134 - Demo 1

Figure 58. Krebs Cycle (Citric Acid Cycle)
Source: https://i.pinimg.com/736x/f2/9d/b7/f29db7d380ba2be9324dcd7e099cf0d1--cell-biology-ap-biology.jpg
THE ELECTRON TRANSPORT CHAIN

The final stage of cellular respiraon involves the electron transport chain, a
series of electron carriers in the cristae of mitochondria. Electrons are passed
from one member of the transport chain to another in a series of redox
reacons. The key steps of this process include:

1. Delivery of electrons by NADH and FADH

Reduced electron carriers (NADH and FADH2) from other steps of cellular
respiraon transfer their electrons to molecules near the beginning of the

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