If I have radiolabeled Carbon and I put it in Carbon Dioxide in a greenhouse, where will the carbon go? Where will it end up?

Most of the labelled CO2 will end up in plants growing there. Since there will be some exchange with outside air, some will be lost to the atmosphere outside.

Thank you

To determine where the radiolabeled carbon will go in a greenhouse when it is added to carbon dioxide, we need to consider the biochemical processes involved.

Carbon dioxide (CO2) is a crucial molecule for photosynthesis, the process by which plants convert light energy into chemical energy. In a greenhouse, plants use photosynthesis to produce glucose (C6H12O6) by capturing carbon from carbon dioxide.

When the radiolabeled carbon is introduced into the greenhouse as carbon dioxide, it will be assimilated by plants during photosynthesis, along with non-labeled carbon. During this process, the radiolabeled carbon becomes integrated into glucose molecules, making them radiolabeled.

The glucose produced by the plants can be utilized for various purposes. It can be converted into other organic compounds, such as cellulose, starch, or other carbohydrates, which form the structure of the plant and serve as an energy source. Additionally, glucose can also be respired by plants to release energy or stored as a long-term energy reserve in the form of starch.

Therefore, the radiolabeled carbon from the radiolabeled Carbon dioxide will ultimately end up distributed throughout the entire plant, including its leaves, stems, roots, and any stored carbohydrates. It could be used for energy production, growth, or stored as a reserve.

To visualize or quantify the distribution of the radiolabeled carbon in the plant, one could measure the radiation emitted by the radiolabeled carbon using specialized equipment like a scintillation counter or autoradiography.