Why Was the Herbaceous Plant Stem Cut Under Red Ink Solution?

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Homework Statement


The stem of the herbaceous plant was cut while immersed under the red ink solution in the beaker before it was left to stand in the red ink solution, as a precaution while setting up this experiment. Suggest a reason behind it.
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The Attempt at a Solution


My attempted answer was that due to the absence of roots, this precaution was taken to ensure that the plant can absorb the red ink.
 

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It could be cut and THEN put into the ink solution. Questions is - why it wasn't done this way, but instead the stem was cut immersed.
 


nicholaschean said:
The stem of the herbaceous plant was cut while immersed under the red ink solution in the beaker before it was left to stand in the red ink solution, as a precaution while setting up this experiment. Suggest a reason behind it.
My attempted answer was that due to the absence of roots, this precaution was taken to ensure that the plant can absorb the red ink.

Firstly I would suggest that you post such questions in the homework section.

I think that this is done to prevent the formation of air pockets which reduce water uptake. However I am not 100% sure.