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 is NOT an example of a vector-borne disease that is affected by climate change?

  1. Malaria

  2. Dengue fever

  3. Chikungunya

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

Influenza is not a vector-borne disease, so it is not directly affected by climate change. Malaria, dengue fever, and chikungunya are all vector-borne diseases that are affected by climate change.

Multiple choice

What is the primary mode of transmission for fungal infections?

  1. Airborne

  2. Waterborne

  3. Contact

  4. Vector-borne
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Fungal infections are primarily transmitted through direct contact with an infected person or animal, or through contact with contaminated surfaces or objects.

Multiple choice

What is the primary mode of transmission for protozoan infections?

  1. Airborne

  2. Waterborne

  3. Contact

  4. Vector-borne
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Protozoan infections are primarily transmitted through the bite of an infected insect or other vector, such as a mosquito or tsetse fly.

Multiple choice

The Asian tiger mosquito is a known vector for:

  1. Malaria

  2. Dengue fever

  3. Yellow fever

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The Asian tiger mosquito is a known vector for malaria, dengue fever, and yellow fever, posing a significant public health risk in many regions.

Multiple choice

Which of the following diseases is NOT commonly associated with dams and irrigation projects?

  1. Malaria

  2. Dengue fever

  3. Typhoid

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

Malaria, dengue fever, and typhoid are all waterborne diseases that can be spread through dams and irrigation projects, while asthma is a respiratory condition not directly related to water.

Multiple choice

Which of the following is a parasitic infection that causes a fever, headache, and muscle aches?

  1. Malaria

  2. Dengue fever

  3. Chikungunya fever

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

Malaria is a parasitic infection that causes a fever, headache, and muscle aches.

Multiple choice

What is the term for a skin infestation caused by tiny mites that burrow under the skin, causing intense itching?

  1. Scabies

  2. Lice

  3. Fleas

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

Scabies is a skin infestation caused by tiny mites that burrow under the skin, causing intense itching.

Multiple choice

What is the most common type of malaria in urban areas?

  1. Plasmodium falciparum

  2. Plasmodium vivax

  3. Plasmodium ovale

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

Plasmodium falciparum is the most common type of malaria in urban areas, accounting for over 90% of cases.

Multiple choice

How is malaria diagnosed?

  1. Blood test

  2. Urine test

  3. Stool test

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

Malaria is diagnosed with a blood test that looks for the presence of malaria parasites.

Multiple choice

What are the most common complications of severe malaria?

  1. Cerebral malaria

  2. Pulmonary edema

  3. Acute renal failure

  4. Disseminated intravascular coagulation (DIC)

  5. Hypoglycemia

  6. Hyperglycemia
Reveal answer Fill a bubble to check yourself
Correct answer
Explanation

The most common complications of severe malaria include cerebral malaria, pulmonary edema, acute renal failure, disseminated intravascular coagulation (DIC), hypoglycemia, and hyperglycemia.

Multiple choice

Which of the following is NOT a mode of transmission for infectious diseases?

  1. Direct contact

  2. Indirect contact

  3. Airborne transmission

  4. Vector-borne transmission

  5. Fomite transmission
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Vector-borne transmission is not a mode of transmission for infectious diseases. It is the transmission of a disease by an arthropod, such as a mosquito or tick.

Multiple choice

What is the vector of papaya ringspot virus, a disease that affects papaya plants?

  1. Aphids

  2. Whiteflies

  3. Thrips

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

Papaya ringspot virus is transmitted by aphids, which feed on the sap of papaya plants and spread the virus to healthy plants.

Multiple choice

Which vector is responsible for transmitting malaria?

  1. Mosquitoes

  2. Ticks

  3. Fleas

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

Malaria is transmitted by female Anopheles mosquitoes.

Multiple choice

Which of the following is a common cause of malaria in pregnant women?

  1. Plasmodium falciparum

  2. Plasmodium vivax

  3. Plasmodium ovale

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Plasmodium falciparum, Plasmodium vivax, and Plasmodium ovale are all common causes of malaria in pregnant women.

Multiple choice

Which of the following is NOT a vector-borne infectious disease?

  1. Malaria

  2. Dengue Fever

  3. Tuberculosis

  4. Lyme Disease
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Tuberculosis is a bacterial infection spread through the air, not by a vector.