How do you demonstrate the use or consumption of Co2 by a plant?

Answer 1

One way is to put them in a closed container of known volume, like a bell jar, and measure the amount of oxygen consumed or the carbon dioxide given off.

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It's the other way around. Plants take in CO2 and gives off O2. Place a plant in a closed system with a sensitive CO2 meter inside and another outside the container. The difference in the readings would be the CO2 that was used by the plant. Oxygen meters would tell you how much oxygen is given off. The formula for photosynthesis is:

2n CO2 + 2n H2O + photons→ 2(CH2O)n+ 2n O2carbon dioxide + water + light energy → carbohydrate + oxygen

Answer 2

By doing an experiment with Phenol Red. If there is no CO2 present the solution will turn orange or be neutral. If the CO2 concentration decreases so does the H ion concentration and the solution turns pink becoming basic.

If the CO2 concentration increases then so does the H ion concentration and the solution will turn yellow becoming acidic.

Answer 3

The easiest way to ensure your plants (especially house plants) get carbon dioxide is for you to breath on them. Many people talk to their plants, because they feel that the plants respond to the attention. The scientific basis for this observation, is that when you talk, you release carbon dioxide. This carbon dioxide helps the plants develop. So, if it makes you feel good to talk to your plants, then continue to do so. The plants really do like it.

You don't need to make extra CO2 for plants, there is plenty of CO2 in the air right now. In fact, CO2 levels are so high right now that they are causing problems like global warming. So don't worry about making extra CO2 for your plants cause there is plenty to go around.

Answer 4

Plants demonstrate the use of CO2 through photosynthesis, where they take in CO2 from the air and convert it into carbohydrates and oxygen using sunlight. This process is essential for plant growth and is typically seen in action in the presence of light. The consumption of CO2 by a plant can be indirectly measured by tracking changes in oxygen levels or by monitoring the plant's growth and biomass production.