Describe an experiment to show that more transpiration occurs from the lower surface of a leaf.
Respuestas a la pregunta
Respuesta:
Keep the plant in sunlight. After sometime it is observed that the cobalt chloride paper on the lower side of the leaf changed its colour to pinkish than the upper side . This shows that rate of transpiration is more on the lower surface of a leaf .
Explicación:
Respuesta:
Explicación:
Two equal pieces of cobalt chloride paper are dried and placed one on the upper surface and the other on the lower surface of dorsiventral leaves. They are firmly held in place by pieces of cellotapes or glass slides. After a few minutes the cohalt chloride paper shows change in colour from blue to pink. The time taken for the cobalt chloride paper on the upper surface of the leaf to turn pink is much longer than for the under surface. Thus, it proves that the rate of transpiration is greater from the under surface of dorsiventral leaves.