10h Class k Biology (E.M.)How would you demonstrate that green plants

1.	10h Class k Biology (E.M.)How would you demonstrate that green plants releaslight ?A.P SA 1: 2016 (lLab Acivity) t(Or)
Answer» Aim : To prove that plants release oxygen when exposed to sunlight Apparatus : Testtube, Funnel, Beaker with water, Hydrilla twigs, Glowing incense stick Procedure : 1) Take a beaker with water and put hydrilla twigs into it2) Invert a funnel over these twigs3) Invert a test tube full of water over the stem of the funnel4) Ensure that the level of water in the beaker is above the level of the stem of the inverted funnel5)Leave the apparatus in the sunlight for few hours Test: Remove the test tube carefully by keeping your thumb over the mouth so that the gas doesnt escape.Insert a glowing incense stick into test tube. It bursts in to flames. This gas is oxygen Result: This experiment proves that green plants release oxygen when exposed to sunlight

10h Class k Biology (E.M.)How would you demonstrate that green plants releaslight ?A.P SA 1: 2016 (lLab Acivity) t(Or)

Answer»

Aim : To prove that plants release oxygen when exposed to sunlight

Apparatus : Testtube, Funnel, Beaker with water, Hydrilla twigs, Glowing incense stick

Procedure :

1) Take a beaker with water and put hydrilla twigs into it2) Invert a funnel over these twigs3) Invert a test tube full of water over the stem of the funnel4) Ensure that the level of water in the beaker is above the level of the stem of the inverted funnel5)Leave the apparatus in the sunlight for few hours

Test:

Remove the test tube carefully by keeping your thumb over the mouth so that the gas doesnt escape.Insert a glowing incense stick into test tube. It bursts in to flames. This gas is oxygen

Result:

This experiment proves that green plants release oxygen when exposed to sunlight

Discussion

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