Chapter 10 Transpiration ,Transport and Support in Plants -...

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5What would happen2to the tree if the decay occurred in the centre of its roots instead of the trunk Why
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710.1How is water lost in transpiration?All organisms losewater all the time.In plants: through transpiration (蒸蒸蒸蒸)H2OH2OH2O
810.1How is water lost in transpiration?
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910.1How is water lost in transpiration?The loss of water vapourfrom the surfaces of plants due to evaporationDefinition of transpiration:From what part(s) of the plant does water mainly lost?.
1010.1How is water lost in transpiration?
1110.1How is water lost in transpiration?What about woody stems?
1210.1How is water lost in transpiration?
1310.1How is water lost in transpiration?
14Demonstration of the occurrence of transpirationProcedure:1Set up the apparatus as shown in the diagram. intactpottedplantbell jarsplastic bagspotted plant with the aerial parts removed
15Demonstration of the occurrence of transpiration2Leave both set-ups in bright light for 2 hours. Procedure:intactpottedplantbell jarsplastic bagspotted plant with the aerial parts removed
16Demonstration of the occurrence of transpiration3Observe any changes in the bell jars. intactpottedplantbell jarsplastic bagspotted plant with the aerial parts removedProcedure:3Test any liquid formed on the walls with dry cobalt (II) chloride paper.
1710.1How is water lost in transpiration?TranspirationThe process of transpiration1)Water on the surface of the mesophyll cells evaporatesinto the air space.2)Air space is saturatedwith water vapourA leaf section
1810.1How is water lost in transpiration?
1910.1How is water lost in transpiration?
What is pulling force?
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