Q.

Highly acidic region of chloroplast is

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By Expert Faculty of Sri Chaitanya

thylakoid membrane

lumen of thylakoid

stroma

periplastidial space

answer is 2.

(Detailed Solution Below)

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Detailed Solution

During light reaction of photosynthesis, lumen shows very high concentration of protons due to photolysis of water and pumping of protons from stroma to lumen. Hence lumen is highly acidic.

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