Question

Как доказать , что минеральные соли и вода передвигаются с помощью корневого давления??? Заранее спасибо!

Answer 1

Растворы миниральных веществ поднимаются от корня вверх внутри стебля по сосудам древесины.
Опыт доказывает, что вода с минеральными веществами передвигается по сосудам древесины:
У побега, поставленного в воду с чернилами, окрасилась только древесина.

Answer 2

How to Demonstrate the Movement of Mineral Salts and Water through Root Pressure

Root pressure is the force that helps move water and mineral salts from the roots to the rest of the plant. There are several ways to demonstrate the movement of mineral salts and water through root pressure. Here is a step-by-step procedure you can follow:

1. Materials needed: - A potted plant with intact roots - A clear plastic bag or plastic wrap - A rubber band or string - A small container or beaker - Water - A knife or scissors

2. Procedure: 1. Start by selecting a healthy potted plant with intact roots. Make sure the plant has been watered adequately before the experiment. 2. Carefully remove the plant from the pot, taking care not to damage the roots. 3. Gently rinse the roots under running water to remove any soil particles. 4. Trim the roots slightly to ensure they fit into the container or beaker. 5. Fill the container or beaker with water, ensuring that it is deep enough to submerge the trimmed roots. 6. Place the trimmed roots into the container or beaker, making sure they are fully submerged in water. 7. Cover the container or beaker with a clear plastic bag or plastic wrap, securing it tightly with a rubber band or string. This will create a closed system. 8. Leave the setup undisturbed for several hours or overnight, allowing time for root pressure to build up. 9. After the designated time, carefully remove the plastic bag or plastic wrap, taking care not to spill the water. 10. Observe the water level in the container or beaker. You should notice that the water level has risen, indicating the movement of water and mineral salts through root pressure.

It is important to note that this experiment demonstrates the concept of root pressure, but it may not provide direct evidence of the movement of mineral salts. The rise in water level in the container or beaker indicates the presence of root pressure, which is responsible for the movement of water and dissolved minerals in the plant.

Please note that the information provided above is a general guideline for conducting an experiment to demonstrate root pressure. It is always recommended to consult scientific literature or academic sources for more detailed and accurate experimental procedures.

I hope this helps! Let me know if you have any further questions.