Question

Take one stem of a white – coloured flowering plant and put it in a water bottle. Add blue or red dye in that water and observe the changes in the colour of that flower. Note these changes and discuss it with your friends and write down.​

Answer 1

Explanation:

it turns into blue / red colour. The colour of flower leaf and system changes because xylem uptakes by the help of root hairs, as the colour of water is blue / red, the colour of the plant also changes, thus this proves the absent of sap by xylem.