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NEET UG BIOLOGY MCQ: PHOTOSYNTHESIS IN HIGHER PLANTS
1
Medium
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Analyzing
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In half leaf experiment, a part of a leaf is enclosed in a test tube containing KOH soaked cotton, while the other half is exposed to air and then setup is placed in light for sometime. It was latter found that part of leaf which was exposed to air tested positive for starch. This indicates that
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Correct option: D
Carbon dioxide is essential for photosynthesis because in KOH soaked leaf, starch synthesis do not occurs as is absorbed by, so is not available for photosynthesis
Option D is correct because KOH absorbs carbon dioxide, preventing it from being available for photosynthesis in the enclosed part of the leaf.
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I. When only PS I is functional, cyclic flow of electrons is not possible
II. The breakdown of the gradient provides enough to make the enzyme synthesis
III. The NADP reductase enzyme is located of the thylakoid membrane
IV. Proton gradient increases due to and Cyt . Law of limiting factors was given by