Parasitology Quiz: Tapeworms

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Questions and Answers

What is the characteristic of the body of adult tapeworms?

  • It is elongated and cylindrical
  • It has a spherical shape
  • It is flattened dorsoventrally (correct)
  • It is circular in cross section

What is the purpose of the sodium nitrate solution in the context of tapeworms?

  • To preserve the tapeworm
  • To distort the eggs of the tapeworm (correct)
  • To create a saturated solution for the tapeworm
  • To study the morphology of the tapeworm

Which part of the tapeworm is responsible for attachment to the host?

  • Scolex (correct)
  • Strobila
  • Neck
  • Proglottids

What is the typical size of the eggs of Echinococcus granulosus?

<p>30-35 micrometers in diameter (D)</p> Signup and view all the answers

What is the characteristic of the immature segment of tapeworms?

<p>It has poorly differentiated reproductive organs (C)</p> Signup and view all the answers

What is the characteristic feature of the scolex of Echinococcus granulosus?

<p>It has a prominent rostellum with two rows of hooklets (D)</p> Signup and view all the answers

Which of the following tapeworms can grow up to 20 m in length in the small intestine of a dog?

<p>Taenia pisiformis (A)</p> Signup and view all the answers

What is the characteristic feature of the metacestode of Echinococcus granulosus?

<p>It is found in the liver and lungs of intermediate hosts (A)</p> Signup and view all the answers

What is the general characteristic of the color of cestodes?

<p>They are always white or yellowish (C)</p> Signup and view all the answers

How many parts does the adult tapeworm body consist of?

<p>Three parts (B)</p> Signup and view all the answers

Which of the following tapeworms has an unarmed scolex?

<p>Moniezia species (C)</p> Signup and view all the answers

What is the characteristic feature of the eggs of Dipylidium caninum?

<p>They are radially-striated with an internal oncosphere (D)</p> Signup and view all the answers

What is the primary characteristic that distinguishes Diphyllobothriidea from Cyclophyllidea?

<p>Uterine pore opens through a ventral genital pore (B)</p> Signup and view all the answers

What is the typical length of an adult Dipylidium caninum tapeworm in the intestine?

<p>10-70 cm (B)</p> Signup and view all the answers

What is the shape of the scolex in Diphyllobothrium latum?

<p>Elongate, spoon shaped (C)</p> Signup and view all the answers

What is the characteristic of the eggs of Diphyllobothrium latum?

<p>Unembryonated, thick-shelled, and operculated (D)</p> Signup and view all the answers

How many suckers are present on the scolex of Dipylidium caninum?

<p>4 (A)</p> Signup and view all the answers

What is the shape of the uterus in Diphyllobothrium latum?

<p>Unbranched, rosette-shaped (D)</p> Signup and view all the answers

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