AP Biology Lab 9: Transpiration

i cant even hear you dumb guy

Thank you!

thx

Thank you always !

Awesome video! thank you

Nice

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Cum!

what are the units of the chart?

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Please become my teacher

and it help

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Thanks. Very helpful.

iamjulietaing1 The control group is that without the heater, fan, light, or bag of mist; it is the first trial that Mr. Anderson explained.

Thanks, this was really helpful :)

Yes. i.e. Increase in transpiration You just said exactly what he said.

The leaf just simply within the room.

There should be 4 Potometers set up: one in the regular room conditions, one in mist, one in a windy environment (fan), and one in a bright light. The control is the one in the regular room conditions.

What is the control group of the experiment?

the last part about the light intensity is not really that true , if there is light the stomata open to allow gaseous exchange for photosynthesis...so more water is lost as the one of the waste products of photosynthesis is water, which is lost by evaporation

thank you very much for helping everyone need help... please keep on good work

there's one thing that is wrong.. The experiment is not used to measure rate of transpiration, it is used to measure rate of water uptake. Because not all water's used for the process of transpiration, the process will then be useless, some of the water's usually used in metabolic reactions (e.g. photosynthesis) and/or used to rebuild components of a cell, such as cytoplasm or the vacuole. Hope it isn't too late :|

Are there any experimental error for this experiment? I'm having my Cambridge biology spa exam soon, and they always ask for a source of experimental error and how it affects the results.