Biology Quiz

In the synthesis of cell components the major element required is

• nitrogen

• sulfur

• carbon

• phosphorus

Unlike trematode which of the following species is dioecious

• Fasciolopsis buski

• Paragonimus westermani

• Schistosoma spp.

• Fasciola hepatica

Which of the following is an infective stage of plasmodium species for human beings

• Immature trophozoite

• Cyst

• Mature trophozoite

• Sporozoite

The only ciliate known to parasitize humans

• Balantidium coli

• Trichomonas vaginalis

• Entamoeba histolytica

• Plasmodium spp.

Which of the following species of plasmodium infect RBCs of all ages.

• Plasmodium ovale

• Plasmodium vivax

• Plasmodium falciparum

• Plasmodium malariae

Which of the following parasite is transmitted to humans through exposure to cat feces?

• Trichomonas vaginalis

• Toxoplasma gondii

• Entamoeba histolytica

• Plasmodium falciparum

All of the following statements regarding Trichomoniasis are true, Except?

• It is a sexually transmitted disease

• Found to be more common in women than in men

• There is no treatment available for trichomoniasis

• A common protozoal infection worldwide

Which of these gram-negative bacteria commonly cause a UTI?

• Escherichia coli

• Klebsiella pneumoniae

• Salmonella typhi

• Proteus mirabilis

Mycobacterium tuberculosis causes tuberculosis which is the commonest cause of infectious death world-wide. Is has a

• Gram positive cell wall

• Gram negative cell wall

• Acid fast cell wall

• Non-acid fast cell wall

What is the primary characteristic of Gram-positive bacteria?

• Thick peptidoglycan layer

• Thin peptidoglycan layer

• Presence of Teichoic acid layer

• Presence of Lipopolysaccharide layer