Which trophozoite shows two prominent nuclei and is identified as Giardia lamblia?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Prepare for the Clinical Laboratory Science Bacteriology Test. Engage with multiple choice questions and flashcards with helpful hints and explanations. Ace your exam confidently!

Multiple Choice

Which trophozoite shows two prominent nuclei and is identified as Giardia lamblia?

Explanation:
The key feature being tested is the binucleate trophozoite of Giardia lamblia. Giardia trophozoites are distinctive because they have two nuclei per cell, often giving a “double eyes” appearance under the microscope. This binucleate form, along with multiple flagella and a ventral adhesive disc, is characteristic of Giardia and helps distinguish it from other intestinal protozoa. For example, Trichomonas species typically have a single nucleus, and Chilomastix mesnili trophozoites also show a single nucleus and a different cytoskeletal setup. So, when you see a trophozoite with two prominent nuclei, Giardia lamblia is the most likely identification.

The key feature being tested is the binucleate trophozoite of Giardia lamblia. Giardia trophozoites are distinctive because they have two nuclei per cell, often giving a “double eyes” appearance under the microscope. This binucleate form, along with multiple flagella and a ventral adhesive disc, is characteristic of Giardia and helps distinguish it from other intestinal protozoa. For example, Trichomonas species typically have a single nucleus, and Chilomastix mesnili trophozoites also show a single nucleus and a different cytoskeletal setup. So, when you see a trophozoite with two prominent nuclei, Giardia lamblia is the most likely identification.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy