NEET BIOLOGY

Detailed explanation-1: -The main waste gas excreted by the lungs is carbon dioxide, which is a waste product of cellular respiration in cells throughout the body. Carbon dioxide is diffused from the blood into the air in the tiny air sacs called alveoli in the lungs (shown in the inset diagram).

Detailed explanation-2: -Liquid and soluble wastes such as urea, ions, and water are removed from the body as sweat and urine. Solid and insoluble wastes are removed from the body as feces.

Detailed explanation-3: -This is the job of the excretory system. You remove waste as a gas (carbon dioxide), as a liquid (urine and sweat), and as a solid. Excretion is the process of removing wastes and excess water from the body. Recall that carbon dioxide travels through the blood and is transferred to the lungs where it is exhaled.

Detailed explanation-4: -These are known as metabolism. These chemical reactions produce waste products such as carbon dioxide, water, salts, urea and uric acid. Accumulation of these wastes beyond a level inside the body is harmful to the body. The excretory organs remove these wastes.

Detailed explanation-5: -Feces: The undigested waste called feces is removed after digestion from the large intestine through the rectum.