Biology · 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 organisms causes malaria?

  1. Salmonella

  2. Mycobacterium tuberculosis

  3. Escherichia coli

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

Plasmodium is a protozoan parasite that causes malaria in humans. Salmonella causes food poisoning, Mycobacterium tuberculosis causes tuberculosis, and Escherichia coli can cause various infections but not malaria.

Multiple choice

Which of the following parasites severely affects apiculture?

  1. Monocystis

  2. Nosema

  3. Enterocytozoon

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

Nosema apis is a microsporidian that invades the intestinal tracts of adult bees and causes nosema disease, also known as nosemosis. Nosema infection is also associated with black queen cell virus. It is normally only a problem when the bees cannot leave the hive to eliminate waste.

Multiple choice

How are Bunyavirus and Togavirus transmitted?

  1. By arthropods and contact

  2. Exclusively by arthropods

  3. By air and droplet nuclei

  4. Exclusively by aerosols
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Bunyavirus and Togavirus are transmitted exclusively by arthropods.

Multiple choice

The protozoan ‘Giardia lamblia‘ causes

  1. beaver fever

  2. scabies

  3. leishmaniasis

  4. toxoplasmosis

  5. chagas disease
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Giardiasis, popularly known as beaver fever, is a parasitic disease caused by the flagellate protozoan Giardia lamblia. 

Multiple choice

How do mosquitoes identify the human beings?

  1. By the smell of our body

  2. By the colour of our body

  3. By the colour of our clothes

  4. By the smell of urine

  5. By the smell of stool
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Mosquitoes identify human being by the smell of body and heat of the body.

Multiple choice

Filariasis is transmitted by ____________.

  1. Aedes mosquito

  2. Anopheles mosquito

  3. Tse-tse fly

  4. Culex mosquito

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

Filariasis is a parasitic disease, which is transmitted by Culex mosquito. Filariasis is not transmitted by fleas.