Describe one experiment you would perform to demonstrate the phenomena that the germinating seeds can respire even in total absence of air.

Aim — Experiment demonstrating the fact that seed germination undergoes respiration even in complete absence of air

Procedure and Inference —

1. Fill a test tube with mercury that is inverted into a beaker of mercury.
2. Into this tube, push some soaked and peeled off pea seeds before inverting into the mercury beaker.
3. You will observe that seeds will float up and are entirely girdled by mercury.
4. A few days later, few changes are observed. Mercury level drops, presence of some gases are detected in the tube.
5. Pour in some KOH into the tube.
6. Gas in the tube is absorbed, mercury level rises again, depicting that the gas was carbon dioxide
7. Consequently it is proved that the germinating seeds undergo respiration even in the total absence of air.