Plasma is the liquid component of blood which transport food,carbon dioxide,nitrogenous waste,dissolved substances such as nutrients, electrolytes etc. It also carries blood components throughout the body.

Transport of Carbon Dioxide and Nitrogenous Wastes in Blood

Blood is a vital fluid in the human body that performs multiple functions. It transports oxygen, nutrients, hormones, and waste materials to various parts of the body. The blood consists of four main components, namely red blood cells (RBC), white blood cells (WBC), platelets, and plasma. Among these, plasma is the component that transports carbon dioxide and nitrogenous wastes in dissolved form.

Plasma

Plasma is the liquid component of blood that makes up about 55% of the total blood volume. It is a yellowish fluid that consists of water, electrolytes, hormones, gases, and proteins. Plasma plays a crucial role in transporting nutrients, wastes, and other essential substances to different parts of the body. It is also responsible for maintaining the pH balance of the blood.

Transport of Carbon Dioxide

Carbon dioxide (CO2) is a waste product of cellular respiration that is produced in the body's tissues. It needs to be removed from the body to maintain the pH balance of the blood. The transportation of carbon dioxide occurs in the following manner:

- The carbon dioxide produced in the tissues diffuses into the blood plasma.
- Carbon dioxide combines with water molecules in the plasma to form carbonic acid (H2CO3).
- Carbonic acid dissociates into bicarbonate ions (HCO3-) and hydrogen ions (H+).
- Bicarbonate ions are transported in the plasma to the lungs, where they are converted back into carbon dioxide and water.
- Carbon dioxide is exhaled out of the body through the lungs.

Transport of Nitrogenous Wastes

Nitrogenous wastes are produced in the body as a result of protein metabolism. These wastes need to be removed from the body to prevent their accumulation, which can cause serious health problems. The transportation of nitrogenous wastes occurs in the following manner:

- Nitrogenous wastes such as urea, uric acid, and creatinine are formed in the liver and other tissues.
- These wastes are transported in the blood plasma to the kidneys.
- The kidneys filter the blood and remove the nitrogenous wastes from it.
- The nitrogenous wastes are excreted out of the body in the form of urine.

Conclusion

In conclusion, plasma is the component of blood that transports carbon dioxide and nitrogenous wastes in dissolved form. It plays a vital role in maintaining the pH balance of the blood and removing waste materials from the body.