Podcast
Questions and Answers
Which organism is known to cause amebic dysentery?
Which organism is known to cause amebic dysentery?
- Giardia Lambalia
- Plasmodium MalarÃae
- Entamoeba Histolytica (correct)
- Trypanosoma Brucei
The trophozoite of Giardia Lambalia is characterized by having a single nucleus.
The trophozoite of Giardia Lambalia is characterized by having a single nucleus.
False (B)
What structure is characteristic of the trophozoite stage of Entamoeba Histolytica?
What structure is characteristic of the trophozoite stage of Entamoeba Histolytica?
Pseudopodia
The cyst of Entamoeba Histolytica is characterized by having ______ nuclei.
The cyst of Entamoeba Histolytica is characterized by having ______ nuclei.
What is the primary disease caused by Trypanosoma Brucei?
What is the primary disease caused by Trypanosoma Brucei?
Match the following organisms with their respective characteristics:
Match the following organisms with their respective characteristics:
What structure is found in the morphology of Trypanosoma Brucei that contains thousands of mitochondria?
What structure is found in the morphology of Trypanosoma Brucei that contains thousands of mitochondria?
Giardia Lambalia is characterized by having ______ pairs of flagella.
Giardia Lambalia is characterized by having ______ pairs of flagella.
Flashcards
Entamoeba Histolytica Trophozoite
Entamoeba Histolytica Trophozoite
The feeding and active stage of Entamoeba Histolytica, characterized by a single, spherical nucleus, with peripheral chromatin and a central karyosome. Cytoplasm consists of an outer, transparent ectoplasm, and an inner, granular endoplasm. Pseudopodia are used for motility, and food vacuoles contain ingested RBCs, WBCs.
Entamoeba Histolytica Cyst
Entamoeba Histolytica Cyst
The infectious, dormant stage of Entamoeba Histolytica, showing a quaternary (4 nuclei) cyst morphology. Containing glycogen and a refractile membrane, it's crucial for transmission.
Giardia Lambalia Trophozoite
Giardia Lambalia Trophozoite
The pear-shaped, diarrheal form of Giardia Lambalia, displaying two nuclei, four pairs of flagella for movement. Features also include adhesive discs and median bodies with unknown functions.
Trypanosoma Brucei Morphology
Trypanosoma Brucei Morphology
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Plasmodium Malariae Forms
Plasmodium Malariae Forms
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Entamoeba Histolytica Nucleus
Entamoeba Histolytica Nucleus
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Giardia Lambalia Flagella
Giardia Lambalia Flagella
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Trypanosoma Brucei Kinetoplast
Trypanosoma Brucei Kinetoplast
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Study Notes
E. Histolytica in Intestine
- Sarcodinia: Feeding and active stage
- Morphology: Single, spherical nucleus
- Karyosome: Central & peripheral chromatin
- Cytoplasm: Ectoplasm (outer) is transparent; Endoplasm (inner) is granular
- Pseudopodia: Allows for motility
- Food Vacuoles: Contain ingested RBCs and tissue (WBCs/Leukocytes)
Cysts (Infective Stage)
- Morphology: 4 nuclei (quadrinucleated cyst)
- Structure: Chromatin bar, Glycogen, Cin cytoplasm, refractive membrane (rounded)
- Location: Watery diarrhea (amoebic dysentery)
Trophozoite
- Morphology: Diarrheal illness, face-like shape
- Motility: Food intake by pseudopodia
- Location: Intestine
- Kinetosomes: 4 pairs of flagella
Giardia Lamblia
- Class: Mastigophora
- Location: Intestine
- Characteristics: Diarrheal illness, 8 flagella, face-shaped
- Nucleus: Binucleated, unknown adhesive disc function, anterior & posterior structures (caudal)
Trypanosoma Brucei
- Parasite: Causes sleeping sickness
- Morphology: Elongated and tapered cell shape
- Cell Membrane: Pellicle
- Kinetoplast: Many mitochondria
- Flagella: Attached to basal body
Plasmodium Malariae
- Morphology: Ring shape; cytoplasm; 3 forms (Band, gametocytes)—sexual form
- Chromatin: Within cytoplasm
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Description
Test your knowledge on E. Histolytica and Giardia Lamblia, two significant intestinal parasites responsible for diarrheal diseases. This quiz covers their morphology, life stages, and characteristics. Dive into the details of their structure and functions to enhance your understanding of these pathogens.
