Tag: zoology

Questions Related to zoology

Causative agent of amoebiasis is

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

  1. Amoeba proteus

  2. Entamoeba histolytica

  3. Entamoeba coli

  4. Entamoeba gingivalis

Show answer
Correct Option: B
Explanation:
Amebiasis is a disease caused by infection with a parasitic amoeba that, when symptomatic, can cause dysentery and invasive extraintestinal problems. The cause of amebiasis is mainly the protozoan parasite Entamoeba histolytica.

So, the correct answer is 'Entamoeba histolytica'.

Which of the following is a communicable disease?

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

  1. Cancer

  2. Malaria

  3. Heart attack

  4. Diabetes

Show answer
Correct Option: B
Explanation:

Any disease that can be transferred from infected person to healthy is called as communicable disease such as malaria because malaria is caused by Plasmodium and transferred from infected to healthy by the help of vector i.e., mosquitoes. Whereas cancer (caused by abnormal cell growth), Heart attack (caused by abnormal metabolism) and diabetes (caused by abnormal secretion of hormone) are the non-communicable disease

In patients suffering from sleeping sickness, the critical symptom which may lead to death appears when the parasite invades

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

  1. Spleen

  2. Heart

  3. Cerebrospinal fluid

  4. Vitreous humor

Show answer
Correct Option: C
Explanation:

Sleeping sickness is curable if treatment is given quickly, however, if left untreated the disease is fatal. Once in the second stage of the disease, when the parasite has crossed the blood-brain barrier, treatment becomes much more aggressive with more toxic drugs needed to kill the parasite. So, the correct option is "C" (Cerebrospinal fluid).

Which of the following is a protozoan disease?

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

  1. Malaria

  2. Typhoid

  3. AIDS

  4. Cholera

Show answer
Correct Option: A
Explanation:

Protozoan diseases are caused by the organisms belonging to the Kingdom Protista, called Protozoa.

A. Malaria is caused by Plasmodium which is protozoa. It is a protozoan disease.
B. Typhoid is caused by bacteria Salmonella typhi.
C. AIDS is caused by the virus HIV.
D. Cholera is caused by bacteria Vibrio cholerae.
Hence, the correct answer is 'Malaria'

Incorrect about Entamoeba histolytica or amoebiasis is:
(a) Parasite of small intestine
(b) Causes dysentery
(c) Houseflies are mechanical carriers
(d) Symptoms include constipation, abdominal pain and cramp.

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

  1. A

  2. C

  3. A, C

  4. All are correct

Show answer
Correct Option: A

_________ is a protozoan disease.

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

  1. Favas

  2. Pullorum

  3. Coccidiosis

  4. Thrush

Show answer
Correct Option: C

Amoebic dysentery is due to ............... infection

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

  1. Entamoeba histolystica

  2. Entamoeba gingivalis

  3. Entamoeba hartmanni

  4. Both A and C

Show answer
Correct Option: A
Explanation:

Entamoeba histolytica is an endoparasile lives in the large intestine of man. It lives in tissues of caecum and colon of large intestine. The pathogenic form cause amoebiasis and hepatic amoebiasis. Thus, the correct answer is option A.

Sleeping sickness is caused by

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

  1. Trypanosoma

  2. Leishmania

  3. Entamoeba

  4. Plasmodium

Show answer
Correct Option: A
Explanation:

Sleeping sickness is caused by two germs (protozoa), Trypanosoma brucei rhodesiense and Trypanosomoa brucei gambiense. The more severe form of the illness is caused by T. brucei rhodesiense. Tsetse flies carry the infection. Thus, the correct answer is option A.

Trypanosoma causes 

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

  1. Dysentery

  2. Sleeping sickness

  3. Plague

  4. Malaria

Show answer
Correct Option: B
Explanation:
Human trypanosomiasis, also known as sleeping sickness, is a vector-borne parasitic disease. It is caused by infection with protozoan parasites belonging to the genus Trypanosoma.The common symptoms are fever, headaches, itchiness, and joint pains
So, the correct answer is 'Sleeping sickness'

Other than intestine, Entamoeba histolytica often gets lodged in 

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

  1. Brain

  2. Liver

  3. Lungs and Testes

  4. All of the above

Show answer
Correct Option: D
Explanation:

Entamoeba histolytica is a microscopic endoparasite of man and is commonly found in the lumen of the upper part of the large intestine, that is the colon. In chronic cases, they get into blood circulation and migrate to the spleen, liver, lungs, gonads, and brain, where they produce secondary complications.

Thus, the correct answer is option D.