Excretory System in Frog MCQ - Practice Questions with Answers

 Excretory System in Frog

• The elimination of nitrogenous wastes is carried out by a well-developed excretory system.
• The excretory system consists of a pair of kidneys, ureters, cloaca and urinary bladder.
• Kidneys are compact, dark red and bean like structures situated a little posteriorly in the body cavity on both sides of the vertebral column.
• Each kidney is composed of several structural and functional units called uriniferous tubules or nephrons.
• Two ureters emerge from the kidneys in the male frogs. The ureters act as urinogenital duct which opens into the cloaca.
• In females the ureters and oviduct open separately in the cloaca.
• The thin-walled urinary bladder is present ventral to the rectum which also opens in the cloaca.
• The frog excretes urea and thus is a ureotelic animal. 
• Excretory wastes are carried by the blood into the kidney where it is separated and excreted.