Question

Where is ferredoxin (Fd) found in the leaf?

• A. Lumen of thylakoid
• B. Stroma lamellae
• C. Stroma of thylakoid
• D. Within the photosystem

Answer 1

The correct option is C Stroma of thylakoid

Ferredoxin (Fd) is a small, water soluble protein present in the stroma of the thylakoid. It may be sometimes present in the membrane of thylakoid but is usually found in the stroma. It is a mobile protein and can move through the stroma. It accepts electrons from Fe-S centres and transfers them to ferredoxin-${\mathrm{NADP}}^{+}$-reductase (FNR).