Question

differentiate between photosystem 1 and photosystem 2

Answer 1

photo system 1 absorbs 700 nm of wavelengths and 2nd absorbs 680 nm wavelengths

Answer 2

Answer:

Photosystem 1 :

• It is located in the grana thylakoids as well as stroma thylakoids.
• The content of chlorophyll a is more than chlorophyll b.
• The photocentre is P700.
• It performs cyclic photophosphorylation independently.
• It receives electrons from Photosystem 2.
• It passes the electrons to NADP+.

Photosystem 2 :

• It is located in the grana thylakoids.
• Chlorophyll a and chlorophyll b are approximately equal.
• The photocentre is P680.
• It performs non cyclic photophosphorylation with he help of photosystem 1.
• Electrons are received from photolytic reaction.
• It passes the electrons to Photosystem 1.