Question

The thylakoid membrane becomes damaged, causing the inside of the thylakoid to mix with the stroma Which of the following processes is likely to be most affected by this damage?
A) The reduction ot NADP+ to NADP
B) Sunlight absorption by the chloroplasts
C) The movement of electrons from photosystem I (PSll) to photosystem I (PSI)
D) ATP synthesis

Answer 1

Answer:

The correct answer will be option-D.

Explanation:

Thylakoid membrane is the membrane of the thylakoid present in the chloroplast which encloses thylakoid lumen.

Thylakoid is the site of the light-dependent reaction as they contain chlorophyll in their photosystem.  This membrane carries out main reactions of photosynthesis like water photolysis, ATP synthesis and electron transport chain.

If leaking is observed in this membrane then it will interfere with ATP synthesis as membrane maintains the proton gradient in and out of the thylakoid. The leaking will cause mixing the content of the stroma and lumen which will disturb the proton gradient. This proton gradient will prevent ATP synthesis.

Thus, option-D is the correct answer.