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Q.
Rise in the water level from X to Y in the given experimental set-up demonstrates
Respiration in Plants
Solution:
Oxygen required for aerobic respiration is taken up from the air of the apparatus. Carbon dioxide released during aerobic respiration is absorbed by potassium hydroxide (KOH). Therefore, a partial vacuum is created in the conical flask. This causes the rise of water in the bent tube. That oxygen is consumed during aerobic respiration can be tested by taking a burning splinter into the conical flask, which gets extinguished.
