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i. Either
cut a stem of a young plant or twig of a tree under water
or else uproot a young herbaceous plant and wash the soil gently
put some water in a beaker and add a dye i.e. eosin or red ink and place the cut stem or young plant in a beaker
leave for time e. g. between 20 minutes and one hour
cut a thin section of stem or leaf
mount it on a slide and examine under a microscope
observe and note the distribution of the dye or ink
the dye appears only in the xylem vessels
ii. OR
use radio-active tracers, C14 in form of carbon
ring a plant then put it in a container containing radio-active phosphorous solution
The radio-active phosphorus is later detected in the leaves.
vindori answered the question on March 25, 2018 at 18:57
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