CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

In PS I, the reaction centre chlorophyll has

A
maximum absorption at 700nm
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
maximum absorption at 600nm
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
maximum absorption at 680nm
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
maximum absorption at 780nm
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A maximum absorption at 700nm
Photosystem I (PS I) is a photosynthetic pigment system. It contains some electron carriers. It is located on both the non-appressed part of grana thylakoids and stroma thylakoids. It consists of a photocentre, light harvesting complexes (LHC I) and a few electron carriers. The reaction centre is formed by a chlorophyll ‘a’ molecule which has maximum absorption at 700nm, hence, called P700. There is not 1, but many of these reaction centres. LHCs contain chlorophyll ‘b’ and carotenoids. It contains A0 (a modified chlorophyll molecule), A1, Fe-S (iron-sulphur) centres, ferredoxin (Fd).

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
Join BYJU'S Learning Program
CrossIcon