Biology ยท General Awareness

Disease Vectors and Pathogens

820 Questions

Disease vectors and pathogens examine how organisms like Plasmodium and Leishmania transmit infections. Test items require matching vectors to specific diseases. Studying these life cycles is essential for scoring well.

Plasmodium infective stagesDisease transmission modesDisease vectors and fleasIntracellular parasitesElephantiasis causes

Disease Vectors and Pathogens Questions

Multiple choice

What is the primary mode of transmission for malaria parasites?

  1. Through contaminated water

  2. Through direct contact with an infected person

  3. Through the bite of an infected mosquito

  4. Through eating contaminated food
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Malaria parasites are transmitted primarily through the bite of an infected female Anopheles mosquito.

Multiple choice

Which organism causes African sleeping sickness?

  1. Trypanosoma brucei gambiense

  2. Trypanosoma brucei rhodesiense

  3. Leishmania donovani

  4. Plasmodium falciparum
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

African sleeping sickness is caused by Trypanosoma brucei gambiense, a protozoan parasite transmitted by the tsetse fly.

Multiple choice

What is the causative agent of Chagas disease?

  1. Toxoplasma gondii

  2. Trypanosoma cruzi

  3. Leishmania major

  4. Plasmodium vivax
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Chagas disease is caused by Trypanosoma cruzi, a protozoan parasite transmitted by triatomine bugs.

Multiple choice

Which parasite causes visceral leishmaniasis?

  1. Leishmania donovani

  2. Leishmania major

  3. Leishmania tropica

  4. Leishmania mexicana
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Visceral leishmaniasis is caused by Leishmania donovani, a protozoan parasite transmitted by sand flies.

Multiple choice

What is the causative agent of toxoplasmosis?

  1. Toxoplasma gondii

  2. Trypanosoma brucei gambiense

  3. Leishmania donovani

  4. Plasmodium falciparum
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Toxoplasmosis is caused by Toxoplasma gondii, a protozoan parasite that can be transmitted through contact with cat feces, undercooked meat, or contaminated soil.

Multiple choice

Which parasite causes giardiasis?

  1. Giardia lamblia

  2. Entamoeba histolytica

  3. Cryptosporidium parvum

  4. Cyclospora cayetanensis
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Giardiasis is caused by Giardia lamblia, a protozoan parasite transmitted through contaminated water or food.

Multiple choice

What is the causative agent of cryptosporidiosis?

  1. Giardia lamblia

  2. Entamoeba histolytica

  3. Cryptosporidium parvum

  4. Cyclospora cayetanensis
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Cryptosporidiosis is caused by Cryptosporidium parvum, a protozoan parasite transmitted through contaminated water or food.

Multiple choice

Which parasite causes cyclosporiasis?

  1. Giardia lamblia

  2. Entamoeba histolytica

  3. Cryptosporidium parvum

  4. Cyclospora cayetanensis
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Cyclosporiasis is caused by Cyclospora cayetanensis, a protozoan parasite transmitted through contaminated water or food.

Multiple choice

What is the causative agent of amebiasis?

  1. Giardia lamblia

  2. Entamoeba histolytica

  3. Cryptosporidium parvum

  4. Cyclospora cayetanensis
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Amebiasis is caused by Entamoeba histolytica, a protozoan parasite transmitted through contaminated water or food.

Multiple choice

Which parasite causes trichuriasis?

  1. Trichuris trichiura

  2. Ascaris lumbricoides

  3. Enterobius vermicularis

  4. Necator americanus
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Trichuriasis is caused by Trichuris trichiura, a nematode parasite transmitted through contaminated soil.

Multiple choice

What is the causative agent of ascariasis?

  1. Trichuris trichiura

  2. Ascaris lumbricoides

  3. Enterobius vermicularis

  4. Necator americanus
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Ascariasis is caused by Ascaris lumbricoides, a nematode parasite transmitted through contaminated soil.

Multiple choice

Which parasite causes enterobiasis?

  1. Trichuris trichiura

  2. Ascaris lumbricoides

  3. Enterobius vermicularis

  4. Necator americanus
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Enterobiasis is caused by Enterobius vermicularis, a nematode parasite transmitted through direct contact with an infected person or through contaminated objects.

Multiple choice

What is the causative agent of hookworm infection?

  1. Trichuris trichiura

  2. Ascaris lumbricoides

  3. Enterobius vermicularis

  4. Necator americanus
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Hookworm infection is caused by Necator americanus, a nematode parasite transmitted through contaminated soil.

Multiple choice

Which parasite causes schistosomiasis?

  1. Schistosoma mansoni

  2. Schistosoma haematobium

  3. Schistosoma japonicum

  4. Schistosoma intercalatum
Reveal answer Fill a bubble to check yourself
Correct answer
Explanation

Schistosomiasis is caused by Schistosoma mansoni, Schistosoma haematobium, Schistosoma japonicum, and Schistosoma intercalatum, trematode parasites transmitted through contact with contaminated water.

Multiple choice

What is the causative agent of filariasis?

  1. Wuchereria bancrofti

  2. Brugia malayi

  3. Onchocerca volvulus

  4. Loa loa
Reveal answer Fill a bubble to check yourself
Correct answer
Explanation

Filariasis is caused by Wuchereria bancrofti, Brugia malayi, Onchocerca volvulus, and Loa loa, nematode parasites transmitted by mosquitoes, black flies, and deer flies.