Chapter Name: Plants: Parts and functions
In this experiment, we will observe the process of water absorption in plants through their roots. We will use two plants with soft stems and their roots.
One tumbler will contain plain water, while the other tumbler will have water with red ink added to it. By observing the plants after a few hours, we can understand how water is absorbed and transported within the plant.
- Two plants with soft stems and intact roots
- Two tumblers
- Red ink
Step by Step Procedure:
- Collect two plants with soft stems and roots. Make sure the roots are intact.
- Fill one tumbler with plain water.
- Add red ink to the other tumbler, making the water turn red.
- Place one plant in each tumbler, ensuring that the roots are submerged in the water.
- Allow the plants to remain in the respective tumblers for 2-3 hours.
- Observe the plants during this time and record your observations.
- Note any changes in the color of the water in each tumbler.
- Observe the stems and other parts of the plants for any visible signs of red color.
- Handle the plants and their roots carefully to avoid damaging them.
- Ensure that the roots of the plants are fully submerged in the water.
- Use red ink sparingly to avoid excessive staining.
Lesson Learnt from Experiment:
The purpose of adding red ink to one of the tumblers is to visualize the movement of water within the plant. By using red ink, we can track the flow of water from the roots to the other parts of the plant.
The appearance of red spots on the stem or flower indicates that water is being transported through the plant’s vascular system. This experiment helps us understand the role of roots in the absorption of water and how minerals present in the soil are also taken up along with the water.