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Questions and Answers
Match the following characteristics with the correct stage of Entamoeba histolytica:
Match the following characteristics with the correct stage of Entamoeba histolytica:
Good-looking and clear-looking, 8-65 µm = Trophozoite Chromatoid bars with rounded ends = Young Cyst Ingested red blood cells = Trophozoite Small and central karyosome, 8-22 µm = Cyst
Match the following descriptors with the corresponding features in the trophozoite stage of Entamoeba histolytica:
Match the following descriptors with the corresponding features in the trophozoite stage of Entamoeba histolytica:
Small and central = Karyosome Progressive and fingerlike = Pseudopodia Fine and evenly distributed = Peripheral chromatin Finely granular = Cytoplasm
Match the following descriptors with the corresponding features in the cyst stage of Entamoeba histolytica:
Match the following descriptors with the corresponding features in the cyst stage of Entamoeba histolytica:
8-22 µm = Size range Spherical to round = Shape One to four = Number of nuclei Rounded ends = Chromatoid bars
Match the following features with their descriptions:
Match the following features with their descriptions:
Match the following size measurements with the correct stage of Entamoeba histolytica:
Match the following size measurements with the correct stage of Entamoeba histolytica:
Match the following features with their respective images in the provided diagrams:
Match the following features with their respective images in the provided diagrams:
Match the following terms with their correct position in the lifecycle of Entamoeba histolytica:
Match the following terms with their correct position in the lifecycle of Entamoeba histolytica:
Match the following morphological features with their corresponding structures in Entamoeba histolytica:
Match the following morphological features with their corresponding structures in Entamoeba histolytica:
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Study Notes
Entamoeba histolytica Characteristics
- Entamoeba histolytica is a pathogenic intestinal amoeba.
- Trophozoite stage has a size range of 8-65 µm, with an average size of 12-25 µm.
- Trophozoite stage is characterized by progressive, fingerlike pseudopodia, one nucleus, and finely granular cytoplasm.
- Ingested red blood cells are present in the trophozoite stage.
- Nucleus has a small and central karyosome and fine, evenly distributed peripheral chromatin.
Entamoeba histolytica Cysts Characteristics
- Cysts have a size range of 8-22 µm, with an average size of 12-18 µm.
- Cysts are spherical to round in shape.
- Cysts have one to four nuclei, with a small and central karyosome, and fine, evenly distributed peripheral chromatin.
- Cysts have finely granular cytoplasm and chromatoid bars with rounded ends in young cysts.
- Young cysts have a diffuse glycogen mass.
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