Plant Compounds and Human Health Quiz

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Questions and Answers

What effect do saponins have on erythrocytes?

  • Promote erythrocyte growth
  • Increase hemoglobin production
  • Prevent hemolysis through membrane stabilization
  • Induce hemolysis by changing membrane permeability (correct)

Why does hemolysis take place on parenteral administration of saponins?

  • Increased permeability in the digestive system
  • Enhanced absorption through skin
  • Limited absorption by mouth (correct)
  • Reduced toxicity through injection

What is the toxicological importance of furanocoumarins?

  • Reduction of skin irritation
  • Enhanced skin pigmentation
  • Prevention of skin disorders
  • Photosensitive properties causing skin damage (correct)

How does light affect the skin after percutaneous or oral absorption of furanocoumarins?

<p>Causes skin injury with erythema and blistering (C)</p> Signup and view all the answers

What has been the recent success of xanthotoxins in treatment?

<p>Symptomatic treatment of psoriasis (A)</p> Signup and view all the answers

What is the effect of saponins on erythrocytes?

<p>Induce hemolysis by changing membrane permeability (C)</p> Signup and view all the answers

Why does hemolysis take place on parenteral administration of saponins?

<p>Limited absorption by mouth (D)</p> Signup and view all the answers

What is the toxicological importance of furanocoumarins?

<p>Photosensitive properties causing skin damage (C)</p> Signup and view all the answers

How do plant extracts containing furanocoumarins affect pigmentation defects?

<p>Used in treatment of pigmentation defects (B)</p> Signup and view all the answers

What treatment has met with considerable success for symptomatic treatment of psoriasis?

<p>Xanthotoxins and irradiation with long wavelength (B)</p> Signup and view all the answers

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