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The Apparatus Shown in the Following Diagram is Garreau’S Potometer Designed to Demonstrate Unequal Transpiration from the Two Surfaces of a Dorsiventral Leaf. - Biology

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The apparatus shown in the following diagram is Garreau’s potometer designed to demonstrate unequal transpiration from the two surfaces of a dorsiventral leaf. Before keeping the leaf in between the cups, anhydrous calcium chloride (CaCl2) contained in two small vials were weighed and placed in both the cups. The ends of the cups were closed with corks through which two mercury manometers were connected. After few hours, CaCl vials were taken out and weighed again.

What do you mean by transpiration?

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Solution

Transpiration is the loss of water in the form of water vapour from the aerial parts (leaves and stem) of the plant.

Concept: Kinds of Transpiration
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APPEARS IN

Selina Concise Biology Class 10 Icse
Chapter 5 Transpiration
Structured/Application/Skill type | Q 5.4 | Page 67
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