Tag: zoology

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Questions Related to zoology

Multiple choice zoology some common diseases diseases caused by protozoa protozoan disease protozoa: benefits and harmful effects

Which of the following is a protozoan disease?

  1. Tetanus

  2. Measles

  3. Filariasis

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

Tetanus (lockjaw) is an infectious disease caused by the bacteria Clostridium tetani. Measles is a highly contagious infection caused by the measles virus. Filariasis a parasitic disease caused by an infection with roundworms of the Filarioidea type. African trypanosomiasis or sleeping sickness is a parasitic disease of humans and other animals. It is caused by protozoa of the species Trypanosoma brucei.

Therefore, the correct answer is option D.

Multiple choice zoology some common diseases diseases caused by protozoa protozoan disease protozoa: benefits and harmful effects

Vector tsetse fly is the carrier of the pathogen

  1. Wuchereria

  2. Plasmodium

  3. Trypanosoma

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

African trypanosomiasis or sleeping sickness is a parasitic disease of humans and other animals. It is caused by protozoa of the species Trypanosoma brucei. It is usually transmitted by the bite of an infected tsetse fly and are most common in rural areas.

Multiple choice zoology some common diseases diseases caused by protozoa protozoan disease protozoa: benefits and harmful effects

The vector that spreads the sleeping sickness is 

  1. Tsetse fly

  2. Anopheles mosquito

  3. Tiger mosquito

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

African trypanosomiasis also known as sleeping sickness, is a vector-borne parasitic disease caused by protozoan parasites belonging to the genus Trypanosoma. The small, single-celled organisms called trypanosomes are transmitted through the bites of tsetse flies. Tsetse flies include all the species in the genus Glossina.

Therefore, the correct answer is option A.

Multiple choice zoology some common diseases diseases caused by protozoa protozoan disease protozoa: benefits and harmful effects

Which of the following protozoans causes amoebic dysentery?

  1. Entamoeba histolytica

  2. Giardia lamblia

  3. Escherichia coli

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

Entamoeba histolytica is a parasitic protozoan that is responsible for causing amoebic dysentery. The disease is transmitted by food and water which is contaminated by fecal matter of the infected person. The symptoms include stomach pain, diarrhea, etc. 

Thus, the correct answer is option A. 

Multiple choice zoology some common diseases diseases caused by protozoa protozoan disease protozoa: benefits and harmful effects

In malaria, shivering occurs when ___________________.

  1. Schizonts enter R.B.C.

  2. Sporozoites enter human body

  3. Merozoites are liberated from RB.C. alongwith toxin

  4. Signet ring stage is attained
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The shivering and fever paroxysm in malaria occur when the infected red blood cells rupture, releasing merozoites and toxic metabolic waste products into the bloodstream.

Multiple choice zoology some common diseases diseases caused by protozoa protozoan disease protozoa: benefits and harmful effects

In patient suffering from malaria, the cells having Schuffner's granules are _________________.

  1. Gametocytes

  2. Signet ring trophozoites

  3. Infected erythrocytes

  4. Infected liver cells
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Schuffner's granules are characteristic stippling observed in erythrocytes infected with Plasmodium vivax or Plasmodium ovale.