Photosynthesis In Higher Plants Question 237
Question: In noncyclic photophosphorylation, the pigment molecule first excited is [MHCET 2004]
Options:
A) $ P_{680} $
B) $ P_{700} $
C) Chlorophyll-b
D) Xanthophyll
Show Answer
Answer:
Correct Answer: A
Solution:
Green plants and algae use two types of photosystems, PS-I with chl.
$ P_{700} $ in its reaction centre and PS-II with $ P_{680} $ in its reaction centre.
The two photosystems are linked by a chain of electron carriers.
Light excites $ P_{680} $ of PS-II to activated $ P_{680} $ .
BETA
