An experiment to show that germinating seeds liberate carbon dioxide.
Set up
Air is drawn over the germinating seeds using a suction pump for some time.
Observation
Lime water in conical flask D turns milk while that in in flask B does not because carbon dioxide was removed by potassium hydroxide.
Conclusion
Carbon dioxide is produced by germinating seeds.
Alternatively
Set up
The experiment is allowed to stand for some time
Observations
Water rises in the capillary tube because seeds use up oxygen during respiration and carbon dioxide produced is absorbed by sodium hydroxide solution
CATEGORIES Bio Questions and answers
TAGS Dr. Bbosa Science