Quiz  /  NEET MCQ on Osmoregulation

  • 1. 
    What is the function of osmoregulation in Paramoecium?

  • Cytostome
  • Contractile vacuole
  • Cytopyge
  • Trichocysts

  • 2. 
    Osmoregulators carry out excretion of salt through_________

  • gills
  • fins
  • scales
  • bladder

  • 3. 
    What happens to the cell, when the excess amount of water passes out from the tissues of the kidney without restoration?

  • The cell is not affected
  • The cell shrivel and die
  • The cell burst open and die
  • The cell takes water from plasma

  • 4. 
    Which of the following is used as an osmolyte in humans to increase medullary interstitial osmolality during concentration of urine?

  • Urea
  • TMAO
  • and both
  • Uric acid

  • 5. 
    A person on a long hunger strike, surviving only on the water will have ______

  • Less amino acids in his urine
  • More sodium in hir urine
  • Less urea in his urine
  • More glucose in his blood

  • 6. 
    Mechanism of regulation, typically between entities and its environment of solutes and the loss and gain of water is known as _______

  • Homeostasis
  • Hemostasis
  • Thermoregulation
  • Osmoregulation

  • 7. 
    Most of the marine invertebrates are _______

  • Osmoregulation
  • Osmoconformers
  • Both depend on seawater concentration
  • None of the above

  • 8. 
    Kidney matrix retains some quantity of urea to maintain_________

  • Metabolism
  • Micturition
  • Desired osmolarity
  • Balance of the body

  • 9. 
    Which of the following is not a primary function of protonephridia?

  • Excretion
  • Osmoregulation
  • Fluid volume regulation
  • Ionic volume regulation

  • 10. 
    Which of the following is the product of both osmoregulator and a nitrogenous?

  • Urea
  • NH
  • Uric acid
  • All of the above
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