Excretory Products and Elimination

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Questions and Answers

Which of the following is the least toxic form of nitrogenous waste excreted by animals?

Ammonia
Carbon dioxide
Uric acid (correct)
Urea

Which of the following substances requires a large amount of water for its elimination?

Urea
Uric acid
Carbon dioxide
Ammonia (correct)

What is the process of excreting ammonia called?

Ammonotelism (correct)
Ammonification
Uricotelism
Ureotelism

Which of the following is NOT a common nitrogenous waste excreted by animals?

<p>Carbon dioxide (C)</p> Signup and view all the answers

What is the main function of the human excretory system?

<p>Elimination of nitrogenous wastes (D)</p> Signup and view all the answers

Flashcards

Uric acid

Uric acid is the least toxic form of nitrogenous waste excreted by animals. It is found in birds, reptiles, and insects. Compared to ammonia and urea, uric acid requires less water for excretion.

Ammonia

Ammonia is a highly toxic form of nitrogenous waste that requires a lot of water for excretion. It is found in aquatic animals like fish.

Ammonotelism

Ammonotelism is the process of excreting ammonia as the primary nitrogenous waste. This process is common in aquatic animals.

Carbon dioxide

Carbon dioxide is not a nitrogenous waste. It is a byproduct of cellular respiration and is primarily eliminated through the lungs.

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Human Excretory System

The human excretory system is responsible for the elimination of nitrogenous wastes from the body. It includes the kidneys, ureters, bladder, and urethra.

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