To test the gas given off when seeds germinate, Biology

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To test the gas given off when seeds germinate

Place some mustard seeds in a flask with some damp cotton wool, in the apparatus shown in the diagram, and permit them to germinate for a some days. Remove the cork carefully and pour water down the thistle funnel. Open the clip, and permit the displaced air to bubble by lime water. This becomes cloudy, showing the presence of carbon dioxide.

 


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