Match each component of the electron transport chain with its description.
Fill the terms on the left to the appropriate blanks on the right to complete the sentences.

__________ is the final electron acceptor of the electron transport chain.
__________ is a prosthetic group present in several components of the electron transport chain.
__________ is a nonprotein organic electron carrier within the electron transport chain.
__________ is a multi-protein complex within the electron transport chain.
__________ donates electrons to the electron transport chain

a. O2 (molecular oxygen)
b. Fe-S
c. Q (ubiquinone)
d. Complex III
e. NADH