Which substances does blood remove from body cells?

Blood plays a crucial role in maintaining homeostasis by transporting various substances throughout the body. One of its primary functions is to remove metabolic waste products from the cells. Carbon dioxide, a byproduct of cellular respiration, is produced by cells as they generate energy. Blood collects this carbon dioxide and transports it to the lungs, where it can be exhaled. Additionally, blood carries other waste products from metabolism, such as urea and creatinine, to the kidneys for filtration and excretion.

The option indicating carbon dioxide and waste products accurately reflects this essential function of blood. This transport process is vital because the accumulation of carbon dioxide and other waste products can be toxic to cells, impairing their function and the overall health of the organism. Thus, the correct choice emphasizes the blood’s role in cleansing the body of harmful substances, ensuring that cells have a stable environment to operate efficiently.