Collection of Carbon Dioxide in our Body
Carbon dioxide is a waste product produced during digestion and respiration in our body. It is essential to collect and remove this carbon dioxide to maintain proper functioning of our body systems.

1. Digestion
During digestion, carbon dioxide is produced as a byproduct of metabolism. When we consume food, it undergoes a series of chemical reactions in our digestive system to break down nutrients. This process releases carbon dioxide as a waste product. The carbon dioxide is then absorbed into the bloodstream from the digestive system.

2. Respiration
In respiration, cells in our body use oxygen to produce energy through a process called cellular respiration. As a result of this process, carbon dioxide is produced as a waste product. The carbon dioxide is transported from the cells to the bloodstream and then carried to the lungs.

3. Collection in the Bloodstream
Once carbon dioxide is produced in the digestive system or cells, it is absorbed into the bloodstream. The carbon dioxide is carried by the blood to the lungs for exhalation. In the bloodstream, carbon dioxide is mainly transported in the form of bicarbonate ions to maintain the acid-base balance in the body.

4. Exhalation
The final step in collecting carbon dioxide in our body is exhalation. When we breathe out, carbon dioxide is expelled from the lungs into the atmosphere. This process helps to remove the waste carbon dioxide from our body and maintain proper gas exchange in the lungs.
In conclusion, carbon dioxide is collected in our body through the processes of digestion and respiration. It is transported in the bloodstream and exhaled out of the body to maintain a healthy balance of gases.