Asked by | 30th Jul, 2008, 11:33: PM
The process of generating ATP from ADP by addition of one phosphate group in presence of light energy is called photophosphorylation. Photophosphorylation is carried out by means of a proton-motive force generated by the thylakoid membrane of the chloroplast. In light reaction, there are 2 pathways of photophosphorylation i.e. cyclic and non-cyclic.
During cyclic process, the high energy rich electron emitted from chlorophyll-a returns to chlorophyll-a, hence the name. Here only ATP is produced.
But in non-cyclic photophosphorylation, the high energy rich electron emitted by chlorophyll-a does not return to chlorophyll-a. Here both ATP and NADPH2 are produced.
Answered by | 31st Jul, 2008, 10:22: AM
Kindly Sign up for a personalised experience
- Ask Study Doubts
- Sample Papers
- Past Year Papers
- Textbook Solutions
Verify mobile number
Enter the OTP sent to your number