Question

angiosper
cells placed end to end. The cell walls at the
Activity 1.1
1
Aim: To show that water is transported by special tissues in the stem
Materials required: a cutting of a plant like balsam or petunia
with white flowers, red ink, beaker, water, cutter, microscope
Method
1. Half-fill a beaker with water.
2. Place the cutting in the beaker with the cut end in the water.
3. Add a few drops of red ink to the water.
4. Leave the beaker in a well-lit place for an hour.
5. Cut across the stem of the plant to get a transverse section or
a cross-section.
6. Also cut the stem vertically to get a section.
Observations and conclusions: After leaving the cutting in the Fig. 1.2 Observing the transportation of
water up the stem through the xylem
beaker of coloured water for an hour, the white flowers have now
become pink. This is because the roots have absorbed the red-coloured water and carried it up to all parts of
the plant.
The cross-section of the stem has small red dots. The vertical section has thin red stripes. The dots and stripes
are xylem tissues which have carried the red water up the stem.
Note: You will notice the flowers that are lower on the stem turn pink before the flowers that are higher on the
stem. Why do you think this happens?​

Answer 1

Answer:

Awafull and I dont understand the reason for this