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

Which of the following nematodes is responsible for lymphatic filariasis?

  1. Ascaris lumbricoides

  2. Wuchereria bancrofti

  3. Brugia malayi

  4. Dracunculus medinensis
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Wuchereria bancrofti is a nematode that causes lymphatic filariasis, a disease that affects the lymphatic system and can lead to elephantiasis.

Multiple choice

Which of the following nematodes is responsible for intestinal roundworm infection?

  1. Ascaris lumbricoides

  2. Wuchereria bancrofti

  3. Brugia malayi

  4. Dracunculus medinensis
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Ascaris lumbricoides is a nematode that causes intestinal roundworm infection, a common parasitic infection that can lead to abdominal pain, diarrhea, and malnutrition.

Multiple choice

Which of the following nematodes is responsible for hookworm infection?

  1. Ancylostoma duodenale

  2. Necator americanus

  3. Strongyloides stercoralis

  4. Trichuris trichiura
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Ancylostoma duodenale is a nematode that causes hookworm infection, a parasitic infection that can lead to anemia, malnutrition, and stunted growth.

Multiple choice

Which of the following nematodes is responsible for strongyloidiasis?

  1. Ancylostoma duodenale

  2. Necator americanus

  3. Strongyloides stercoralis

  4. Trichuris trichiura
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Strongyloides stercoralis is a nematode that causes strongyloidiasis, a parasitic infection that can lead to abdominal pain, diarrhea, and respiratory problems.

Multiple choice

Which of the following nematodes is responsible for whipworm infection?

  1. Ancylostoma duodenale

  2. Necator americanus

  3. Strongyloides stercoralis

  4. Trichuris trichiura
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Trichuris trichiura is a nematode that causes whipworm infection, a parasitic infection that can lead to abdominal pain, diarrhea, and rectal prolapse.

Multiple choice

Which of the following nematodes is responsible for pinworm infection?

  1. Enterobius vermicularis

  2. Ascaris lumbricoides

  3. Wuchereria bancrofti

  4. Brugia malayi
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Enterobius vermicularis is a nematode that causes pinworm infection, a common parasitic infection that can lead to anal itching, sleep disturbances, and irritability.

Multiple choice

Which of the following nematodes is responsible for filariasis?

  1. Wuchereria bancrofti

  2. Brugia malayi

  3. Loa loa

  4. Onchocerca volvulus
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Wuchereria bancrofti is a nematode that causes filariasis, a parasitic infection that can lead to elephantiasis, a condition characterized by swelling of the legs, arms, and genitals.

Multiple choice

Which of the following nematodes is responsible for loiasis?

  1. Wuchereria bancrofti

  2. Brugia malayi

  3. Loa loa

  4. Onchocerca volvulus
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Loa loa is a nematode that causes loiasis, a parasitic infection that can lead to swelling of the eyes, joints, and skin.

Multiple choice

Which of the following nematodes is responsible for onchocerciasis?

  1. Wuchereria bancrofti

  2. Brugia malayi

  3. Loa loa

  4. Onchocerca volvulus
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Onchocerca volvulus is a nematode that causes onchocerciasis, a parasitic infection that can lead to blindness, skin problems, and disfigurement.

Multiple choice

Which of the following nematodes is responsible for dracunculiasis?

  1. Wuchereria bancrofti

  2. Brugia malayi

  3. Loa loa

  4. Dracunculus medinensis
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Dracunculus medinensis is a nematode that causes dracunculiasis, a parasitic infection that can lead to painful swelling and ulceration of the skin.

Multiple choice

Which of the following nematodes is responsible for angiostrongyliasis?

  1. Angiostrongylus cantonensis

  2. Angiostrongylus costaricensis

  3. Angiostrongylus malaysiensis

  4. Angiostrongylus vasorum
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Angiostrongylus cantonensis is a nematode that causes angiostrongyliasis, a parasitic infection that can occur when raw or undercooked snails or slugs containing the larvae are consumed.

Multiple choice

Which vector-borne disease is NOT significantly influenced by climate change?

  1. Malaria

  2. Dengue

  3. Lyme disease

  4. Yellow fever
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Lyme disease is primarily transmitted by ticks, which are not directly affected by climate change. Malaria, dengue, and yellow fever, on the other hand, are transmitted by mosquitoes, which are sensitive to changes in temperature and precipitation.

Multiple choice

Which of the following is a parasite that causes malaria?

  1. Plasmodium falciparum

  2. Trypanosoma cruzi

  3. Leishmania donovani

  4. Toxoplasma gondii
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Plasmodium falciparum is a parasite that is the most common cause of malaria.

Multiple choice

What are prolapsed hemorrhoids?

  1. Hemorrhoids that have pushed out of the anus

  2. Hemorrhoids that have become infected

  3. Hemorrhoids that have become thrombosed

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Prolapsed hemorrhoids are hemorrhoids that have pushed out of the anus. They can be very uncomfortable and can cause pain, bleeding, and itching.

Multiple choice

Which vector-borne disease is responsible for the highest number of deaths worldwide?

  1. Malaria

  2. Dengue

  3. Yellow Fever

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

Malaria is the deadliest vector-borne disease, causing an estimated 409,000 deaths in 2019.