NTA Abhyas NEET2020BotanyRespiration in PlantsPractice
Terminal cytochrome of respiratory chain which donates electrons to oxygen is
Options
- ACyt b
- BCyt c
- CCyt a 1
- DCyt a 3 .
Correct answer
D. Cyt a 3 .
Step-by-step solution
Cytochrome a 3 helps in transfer of electron to oxygen. Complex IV of ETS consists of Cytochrome a, cytochrome a 3 and enzyme cytochrome oxidase which transfers electron to terminal electron acceptor oxygen. The oxygen has great affinity to accept the electrons and in presence of protons a water molecule is formed.