Oxygen is Released during Photosynthesis

 

Experiment:

 

1. i) Place a funnel over the shoot of hydra (water plant) in a beaker of water.

 

1. ii) Invert a test tube filled with water over funnel.

 

iii) Place funnel such that water can freely circulate.

 

1. iv) Now keep the apparatus in sunlight for some time.

 

1. v) Bubbles of gas will soon appear from cut end of stem.

 

1. vi) Bubbles rise and gather in test tube. Remove test tube when filled.

 

vii) The match stick will burn with flame show that tube is rich with oxygen.

 

viii) So it is proved that oxygen is released during photosynthesis.

 

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