Which one of the following products diffuses out of the chloroplast during photosynthesis?
- ADP
- NADPH
- \(O_2\)
- ATP
The Correct Option is C
Solution and Explanation
During photosynthesis, the light-dependent reactions in the chloroplast produce ATP, NADPH, and O$_2$. Of these, oxygen (O$_2$) diffuses out of the chloroplast as a byproduct. ATP and NADPH are used within the chloroplast to drive the light-independent reactions (Calvin cycle), which produce sugars.
Top Questions on Photosynthesis in higher plants
- Choose the correct sequence of no. of molecules formed when 6 mol of CO\textsubscript{2 enters into calvin cycle pathway}
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I. Proton gradient across the membrane decreases due to cyclic flow of electrons between PQ and cytochrome b.
II. NADP reductase enzyme is located on the stroma side of the membrane.
III. PQ removes electron from the stroma- AP EAPCET - 2025
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I. Joseph Priestley (1770): Showed that plants have the ability to take CO2 from the atmosphere and release O2.
II. Jan Ingenhousz (1779): Release of CO2 by plants was possible only at night and only by the non-green parts of plants.
III. Julius Von Sachs (1884): Green parts in plants produce glucose which is stored as starch.
IV. C. Van Niel (1931): Photosynthesis is essentially a light dependent reaction in which hydrogen from an oxidizable compound reduces CO2 to form carbohydrates.
Correct statements: I, III, IV- AP EAPCET - 2025
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