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Biology /Protozoa of Medical and Veterinary Importance

Protozoa of Medical and Veterinary Importance

Biology10 CardsCreated about 2 months ago

This deck covers key protozoan species including amoebae, apicomplexans, and ciliates, focusing on their morphology, life cycles, and medical significance.

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What distinguishes amoebae in terms of their structure?

Amoebae are distinguished by the structure of the nucleus and endosome, the number of nuclei in the trophozoite, the presence of glycogen or red blood cells, and whether they form cysts.

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Key Terms

Term

Definition

What distinguishes amoebae in terms of their structure?

Amoebae are distinguished by the structure of the nucleus and endosome, the number of nuclei in the trophozoite, the presence of glycogen or red blood...

What is the most pathogenic intestinal amoeba species?

Entamoeba histolytica is the most pathogenic intestinal species, capable of penetrating the intestine and causing serious illness.

How is Naegleria fowleri typically diagnosed?

Naegleria fowleri is generally diagnosed by histological sections of the brain following death.

What is the infective stage of Toxoplasma gondii?

The infective stage of Toxoplasma gondii involves oocysts found in feline feces, which upon ingestion by mammals, release sporozoites that penetrate t...

What disease do Cryptosporidium parvum and C. hominis cause?

Cryptosporidium parvum and C. hominis cause cryptosporidiosis, a serious diarrheal disease.

Which Plasmodium species are the most common agents of malaria?

Plasmodium falciparum and Plasmodium vivax are the most common agents of malaria.

What is the diagnostic feature of Balantidium coli?

A large, sausage-shaped macronucleus is a diagnostic feature of Balantidium coli.

What is the significance of the trophozoite stage in protozoa?

The trophozoite stage is the feeding and reproductive form of protozoa.

What is the appearance of Cryptosporidium oocysts in slides?

Cryptosporidium oocysts appear as small, reddish blotches in slides.

How do Plasmodium sporozoites reach the liver?

Plasmodium sporozoites are injected by Anopheles mosquitoes and make their way to the liver to multiply in hepatocytes.

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Protozoa of Medical and Veterinary Importance

Term	Definition
What distinguishes amoebae in terms of their structure?	Amoebae are distinguished by the structure of the nucleus and endosome, the number of nuclei in the trophozoite, the presence of glycogen or red blood cells, and whether they form cysts.
What is the most pathogenic intestinal amoeba species?	Entamoeba histolytica is the most pathogenic intestinal species, capable of penetrating the intestine and causing serious illness.
How is Naegleria fowleri typically diagnosed?	Naegleria fowleri is generally diagnosed by histological sections of the brain following death.
What is the infective stage of Toxoplasma gondii?	The infective stage of Toxoplasma gondii involves oocysts found in feline feces, which upon ingestion by mammals, release sporozoites that penetrate the gut wall.
What disease do Cryptosporidium parvum and C. hominis cause?	Cryptosporidium parvum and C. hominis cause cryptosporidiosis, a serious diarrheal disease.
Which Plasmodium species are the most common agents of malaria?	Plasmodium falciparum and Plasmodium vivax are the most common agents of malaria.
What is the diagnostic feature of Balantidium coli?	A large, sausage-shaped macronucleus is a diagnostic feature of Balantidium coli.
What is the significance of the trophozoite stage in protozoa?	The trophozoite stage is the feeding and reproductive form of protozoa.
What is the appearance of Cryptosporidium oocysts in slides?	Cryptosporidium oocysts appear as small, reddish blotches in slides.
How do Plasmodium sporozoites reach the liver?	Plasmodium sporozoites are injected by Anopheles mosquitoes and make their way to the liver to multiply in hepatocytes.