The Student Room Group

Ringing Experiment !!!

1. Cut off a complete ring of bark including the phloem and cambium from the main stem of a woody twig so that the xylem is exposed. Place the twig in water with the ring immersed.
2. Compare this with another twig that has a cut ring above the water level.
3.Set up a control using an unringed twig.
4. Observe the twigs daily. Note where adventitious roots or swellings appear.
5. what does this experiment tell you about the phloem?
6. Suggest an explanation for your observations.


can u please explain me the results of this experiment !!! and also the role of liver in regulating body temperature... i know it has to do with the metabolic rate but does it have any relation with converting glucose to glycogen and vice versa !!!

Reply 1

as the phloem is a tube in the plant a section has been removed so sugar builds up above the ring

Reply 2

what about liver and regulation of body temperature ??? and according to the above experiment ..does it mean taht swellings wud be formed above the ring ??

Reply 3

does it mean taht swellings wud be formed above the ring ??

yeah, because the sucrose etc cant be transported along the phloem from the source (leaves) to sink (root) to be stored as starch it builds up above the ring,
aint got a clue what relation that has with the liver tho !