Animal Excretory System
Biology ⇒ Animal Biology
Animal Excretory System starts at 9 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Animal Excretory System.
How you perform is determined by your score and the time you take.
When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 12
A person is suffering from kidney failure. Which process can be used to artificially remove wastes from their blood?
Describe how antidiuretic hormone (ADH) affects urine concentration.
Describe the role of the liver in excretion.
Explain the difference between cortical and juxtamedullary nephrons.
Explain the process of ultrafiltration in the mammalian kidney.
Explain the term 'osmoregulation' and its importance in animals.
Explain why desert mammals have longer loops of Henle compared to mammals in moist environments.
In a scenario where a mammal is deprived of water for 48 hours, describe the expected changes in urine volume and concentration.
Which nitrogenous waste is least toxic and most insoluble in water?
(1) Ammonia
(2) Urea
(3) Uric acid
(4) Creatinine
Which of the following animals is most likely to excrete ammonia directly?
(1) Human
(2) Frog
(3) Fish
(4) Bird
Which of the following animals is uricotelic?
(1) Frog
(2) Human
(3) Bird
(4) Fish
Which of the following is a correct sequence of urine formation?
(1) Filtration → Secretion → Reabsorption
(2) Filtration → Reabsorption → Secretion
(3) Reabsorption → Filtration → Secretion
(4) Secretion → Filtration → Reabsorption
In insects, the excretory organs are called ________ tubules.
The excretory organ in flatworms is called the ________ cell.
The functional unit of the kidney is called the ________.
The loop of Henle is primarily responsible for ________.
True or False: Birds primarily excrete uric acid as their main nitrogenous waste product.
True or False: The excretory system helps regulate blood pressure.
True or False: The Malpighian tubules in insects open into the digestive tract.
True or False: The renal artery carries blood away from the kidney.
