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WorksheetsStage 2 remedial
Total questions: 7
Worksheet time: 4mins
Which of the following protozoa is most commonly associated with causing dysentery?
Trichomonas vaginalis
Cryptosporidium parvum
Giardia lamblia
Entamoeba histolytica
Describe the morphology of Plasmodium vivax.
Ring-form trophozoites (rings) are often thin and delicate, measuring on average 1/5 the diameter of the red blood cell.
Typically occupies about one-third of the red blood cell (RBC).
A dense, compact cytoplasm with a single chromatin dot.
Gametocytes are crescent- or sausage-shaped.
RBC is enlarged. A ring stage, trophozoite stage, schizont stage, and merozoite stage in red blood cells, along with a dormant liver stage called hypnozoites.
Which of the following statements about Entamoeba histolytica is correct?
Entamoeba histolytica causes a self-limiting infection in all cases and does not require treatment.
Entamoeba histolytica is primarily transmitted through direct contact with infected individuals.
Entamoeba histolytica infection can lead to amoebic dysentery characterized by bloody diarrhea and abdominal pain.
Entamoeba histolytica is exclusively found in developed countries with high standards of sanitation.
Which of the following statements about is correct about this picture?
It is caused by Loa loa
It is associated with Acanthamoeba infection.
it is associated with Toxoplasma gondii.
It is associated with Pseudomonas aeruginosa
Which of the following is TRUE regarding Trichomonas vaginalis
Transmitted via Direct contact with oral secretions (kissing, sharing of utensils)
Trichomonas vaginalis is known to cause gastrointestinal infections and is transmitted via fecal-oral route.
Presents with symptoms including itching, burning, and a frothy, greenish-yellow discharge in the genital area.
Trichomonas vaginalis can be treated with antibiotics such as penicillin.
.
Which of the following is true regarding Taenia saginata infection?
Taenia saginata is primarily transmitted through the ingestion of contaminated water
he adult form of Taenia saginata resides in the human liver.
The primary intermediate host for Taenia saginata is cattle.
Humans are the intermediate host for Taenia saginata.
Which of the following best describes the pathogenesis of Giardia lamblia infection?
Giardia lamblia attaches to the intestinal mucosa, causing direct tissue destruction and bleeding.
Giardia lamblia disrupts intestinal absorption by adhering to the intestinal lining and causing malabsorption of nutrients.
.Giardia lamblia produces toxins that damage the gut epithelium, leading to severe systemic illness.
Giardia lamblia invades the intestinal wall and causes ulcerative lesions and systemic infection.