Question

Urea formed in the body is removed by which of the following metabolic system?

• A. Circulatory system
• B. Excretory system
• C. Respiratory system
• D. All

Answer 1

Answer: (B)

Excretory system

The excretory system is a passive biological system that removes excess, unnecessary materials from the body fluids of an organism, so as to help maintain internal chemical balance and prevent damage to the body. Urea is produced when foods containing protein, such as meat, poultry, and certain vegetables, are broken down in the body. Urea is carried in the bloodstream to the kidneys where it gets filtered, and thus it is removed from the blood via urinary system. Therefore the correct answer is option B.