NEET BIOLOGY

Detailed explanation-1: -The lungs are responsible for the excretion of gaseous wastes, primarily carbon dioxide from cellular respiration in cells throughout the body. Exhaled air also contains water vapor and trace levels of some other waste gases.

Detailed explanation-2: -In the human body, carbon dioxide is formed intracellularly as a byproduct of metabolism. CO2 is transported in the bloodstream to the lungs where it is ultimately removed from the body through exhalation.

Detailed explanation-3: -The oxygen-rich hemoglobin is transported throughout the body and the lungs exhale the carbon dioxide.

Detailed explanation-4: -The lungs in the respiratory system excrete some waste products, such as carbon dioxide and water. The skin is another excretory organ that rids the body of wastes through the sweat glands.

Detailed explanation-5: -Excretion is the process of removing wastes from the body of a living organism. During respiration, organisms breathe in oxygen rich air and release carbon dioxide as a waste product.