Excretory System Functions

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Questions and Answers

What is the toxic byproduct of human metabolism that the liver converts into urea?

  • Ammonia (correct)
  • Water
  • Sodium chloride
  • Carbon dioxide

Where does urea travel to after leaving the liver through the bloodstream?

  • Stomach
  • Lungs
  • Kidneys (correct)
  • Pancreas

What is the basic functional unit of the kidney responsible for filtering out waste products and reabsorbing nutrients?

  • Renal artery
  • Nephron (correct)
  • Glomerulus
  • Ureter

What is the function of dialysis treatment?

<p>To remove waste products from the blood (D)</p> Signup and view all the answers

What is the primary role of the kidneys in the excretory system?

<p>Filtering waste products out of the blood (C)</p> Signup and view all the answers

How does the bladder signal the need to urinate as it fills with urine?

<p>By contracting its walls (C)</p> Signup and view all the answers

What happens when the muscular valve at the exit point of the bladder is opened?

<p>Urine exits through the urethra (D)</p> Signup and view all the answers

Why is detoxification important in the human body?

<p>To eliminate dangerous substances (C)</p> Signup and view all the answers

Which organ is responsible for modifying dangerous substances in the body?

<p>Liver (D)</p> Signup and view all the answers

What is a common function of the excretory system in animals?

<p>Filtering waste products (A)</p> Signup and view all the answers

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