Write difference between:Light reaction – Dark reaction(OR)Different – InterviewSolution

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Write difference between:Light reaction – Dark reaction(OR)Differentiate the reactions that take place in presence of light and the reactions which do not require light in photosynthesis.

Answer»

Light reaction	Dark reaction
1. It occurs in the grana of the chloroplast.	1. It occurs in the stroma of the chloroplast.
2. It occurs only in the presence of light.	2. It occurs in the presence or absence of light.
3. It occurs in the grana of the chloroplast.	3. It occurs in the stroma of the chloroplast.
4. Light reaction absorbs oxygen and light energy	4. Dark reaction absorbs only CO₂.
5. End products are O₂, ATP and NADPH.	5. End product is Glucose.
6. Photolysis of water occurs.	6. Carbon fixation occurs.
7. First stage of photosynthesis.	7. Second stage o: photosynthesis.

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