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Photosynthesis in Autotrophs

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Question

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(ix) Inverted jar experiment is done to test the presence of gas during photosynthesis.

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Solution

In the experimental set up, after some time, bubbles of gas starting from the leaves are found moving into the test-tube.

If we remove the test-tube and bring a glowing splinter near its mouth. The splinter starts burning with a bright flame.

This is the proof that the gas in the test-tube is oxygen, and it is produced during photosynthesis.

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(b) What is done to a part of destarched leaf so that photosynthesis may not take place in that part of the leaf (before keeping the potted plant in sunlight)?
(c) How is chlorophyll removed from the green leaf before further testing?
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Q. State whether the following statements are true/false.

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Photosynthesis in Autotrophs

Standard VIII Biology

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