Question

Which of the following is a copper containing protein acting as a mobile electron carrier in thylakoid membrane?

• A. Pheophytin
• B. Plastocyanin
• C. Plastoquinone
• D. Cytochrome ${\text{b}}_6$

Answer 1

The correct option is B Plastocyanin

Correct Answer: (a)

$\text{Plastocyanin}$ is a copper containing protein which acts as an electron carrier in the thylakoid membrane, which transfers electrons from cytochrome ${\text{b}}_6\text{-f}$ complex to photosystem I during noncyclic electron flow.