Multiple choice

The terminal cytochrome of respiratory chain which donates electrons to oxygen is

  1. cyt. b

  2. cyt. d

  3. cyt. c

  4. cyt. a3

  5. cyt. bd

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Cytochrome a3 helps in the transfer of electrons to oxygen. The oxygen has great affinity to accept the electrons and in the presence of protons, a water molecule is formed.