Plant tissues are made of mainly two types- xylem (the dead cells-hard surface cells that also then become the bark) and the phloem- which carries the soil-absorbed water to the leaves. When the plant is relatively tender, the red water (presumably made from food grade dye) is absorbed and due to the tender cells of the stem and the branches, the red colouring can be seen easily by the naked eye. Depending on the kind of dye used, the colour may stay for a few days or till those cells/leaves are shed. As clear water is taken up after you stop giving the red colour the cells in the stem and branches will start to regain the original translucency.
it changes into deep blue colour.
The food colouring itself does not have any affect on the growth of the plant, it does however colour or "stain" the tissues of the plant - sometimes making them easier to see under a microscope. If certain flowers (normally cut flowers) are watered with water containing food colouring, the colour of the flowers can be artificially manipulated (this is sometimes done with chrysanthemums, roses and carnations). The colour change is not permanent as it is not a genetic characteristic, only a physical change due to the coloured pigment.
This is perhaps a more general answer and not merely limited to Pechay/Bok choi. If a vegetable is placed in water, it will soak up the water through its roots and the water is carried throughout the plant to hydrate it. With coloured water, the colour is soaked up along with the water.
because it bubbles upbecause it changes colour
The blue copper sulfate pentahydrate loss by heating water and become an anhydrous white sulfate.
If you used coloured water, it will change the colour of the petals.
They get covered in colored water
Put the gas (CO2) in lime water. If the lime water changes colour, then it means that there is carbon dioxide in the gas depending on how fast the lime water changes colour
Put the gas (CO2) in lime water. If the lime water changes colour, then it means that there is carbon dioxide in the gas depending on how fast the lime water changes colour
Because the water goes up the stem, into the flower fully, making it that colour (:
I think it's because of the number of minerals and because of the riverbed, it changes.
white flower changes the colour according to the ink
No as long as the coloring agent is not toxic but it can affect the color of a flower that has been cut.
It does not but if it is kept in a beaker of coloured water then it does
it changes colors because the water hits the light amount of flavor and light shade of coloring and changes it back to the color white..........
as it dries up the water content goes with the colour of the fruit. so it changes colour
it changes into deep blue colour.