Protozoan Infections

Q. Common cold differs from pneumonia in:

1. Pneumonia is communicable while common cold is deficiency disease
2. Pneumonia can be prevented by bacterial vaccine while common cold has no effective vaccine
3. Pneumonia is caused by a virus while common cold is caused by bacterium Haemophilus influenzae
4. Pneumonia infects alveoli while common cold affects nose and respiratory passage

Q.

Name the causative agent of malaria. State two symptoms and two preventive measures of malaria.

Q. Malignant malaria is caused by _______ whereas benign tertian malaria is caused by _________.

1. Plasmodium vivax, Plasmodium falciparum
   
2. Plasmodium malariae, Plasmodium vivax
3. Plasmodium falciparum, Plasmodium vivax
4. Plasmodium vivax, Plasmodium malariae

Q. The infective stage of Entamoeba is

1. trophozoite
2. tetranucleate cyst
3. metacyst
4. binucleate cyst

Q. Many diseases can be diagnosed by observing the symptoms in the patient. Which group of symptoms given in the options are indicative of pneumonia?

1. Difficulty in breathing, fever, chills, cough and headache
2. Constipation, abdominal pain, cramps and blood clots
3. Nasal congestion and discharge, cough, sore throat and headache
4. High fever, weakness, stomach pain, loss of appetite

Q.

What microbe causes dengue fever?

Q. Infection of pneumonia occurs due to

1. droplets released from an infected person
2. infected droplets inhaled by healthy person
3. sharing contaminated objects such as glasses and utensils with an infected person
4. all of the above

Q. Which of these causes malignant malaria?

1. P. falciparum
2. P.ovale
3. P.vivax
4. All of the above

Q. Choose the correct statement regarding the life cycle of the parasite Plasmodium. It has 2 stages and

1. The sexual stage takes place in the humans and the asexual stage that takes place in the mosquitoes.

2. The asexual stage takes place in the humans and the sexual stage that takes place in the mosquitoes.

   
   
3. The sexual stage takes place in humans and there is no asexual stage
4. None of the above

Q.

Which of the following can make you ill if you come in contact with an infected person?

1. High blood pressure

2. Genetic abnormalities

3. Sneezing

4. Blood cancer

Q. To complete its life-cycle human liver fluke depends on

1. Two intermediate hosts—snail and sheep
2. One intermediate host—snail
3. Two intermediate hosts—snail and fish
4. One intermediate host—sheep

Q. Name two diseases whose spread can be controlled by the eradication of Aedes mosquitoes. [1]

Q. Which of the following organs of the respiratory tract is not affected by common cold?

1. Nasal cavity
2. Trachea
3. Lungs
4. Larynx

Q. Which one of the following pairs of diseases is viral as well as transmitted by mosquitoes?

1. Elephantiasis and dengue
2. Encephalitis and sleeping sickness
3. Yellow fever and dengue
4. Yellow fever and sleeping sickness

Q. Most dangerous species of Plasmodium is

1. P. vivax
2. P. falciparum
3. P. malariae
4. P. ovale

Q.

Name the target organ of Plasmodium.

Q. Which of the following statement(s) regarding pneumonia is/are correct?
I. Only bacterial infection leads to pneumonia.
II. There are various forms of pneumonia that tend to cause an excessive build-up of mucus in the lungs.
III. Oxygen does not easily diffuse into the blood and carbon dioxide cannot diffuse out easily is one of the effects of pneumonia.
IV. Difficulty in breathing, fever, chills, cough and headache are a group of symptoms that indicate pneumonia.

1. I only
2. II & IV
3. II, III & IV
4. I, II, III & IV

Q.

Cerebral malaria is caused by

1. Plasmodium vivax

2. Plasmodium ovale

3. Plasmodium malariae

4. Plasmodium falciparum

Q. A biosensor can be used to detect blood glucose level of a person. True or false?

1. True
2. False

Q. Fill in the blanks with suitable words.
(viii) Malaria is caused by a Protozoan called _____

Q. Tetanus disease is caused by

1. protozoa
2. virus
3. bacteria
4. fungi

Q. Assertion(A): Plasmodium, a protozoan parasite initially multiplies in liver cells and enters blood cells.​
Reason(R): It is responsible for the cause of filariasis.​

Q. From the following sentences which one is appropriate for pneumonia?

p- Burning is felt in alveolar wall

q- There is obstruction of wind pipe

r- Pain in inhalation, cough & headache are seen

s- Incubation period is of 1 to 3 days.

1. 
   P, Q, R, S all are improper
2. 
   P, Q, R, S proper & S is improper
3. 
   P, Q, R, S proper & S is improper
4. 
   P, Q, R, S all are proper

Q. Which one of the following conditions through harmful in itself is also a potential savior from a mosquito-borne infectious disease?

1. Sickle cell anaemia
2. Thalassemia
3. Pernicius anaemia
4. Leukemia

Q. Which of the following statement(s) regarding pneumonia is/are correct?
I. Only bacterial infection leads to pneumonia.
II. There are various forms of pneumonia that tend to cause an excessive build-up of mucus in the lungs.
III. Oxygen does not easily diffuse into the blood and carbon dioxide cannot diffuse out easily is one of the effects of pneumonia.
IV. Difficulty in breathing, fever, chills, cough and headache are a group of symptoms that indicate pneumonia.

1. I only
2. II & IV
3. II, III & IV
4. I, II, III & IV

Q. Which of the following organisms is known to form abscesses in human liver, lungs and brain?

1. Entamoeba histolytica
2. Monocystis
3. Plasmodium
4. Fasciola hepatica

Q. Ascariasis is characterized by

1. Infection of the lymph nodes
2. Infection of the small intestine
3. Infection of the neck, skin and groin area
4. Infection of the large intestine

Q. Name two diseases caused by infectious agents in polluted water?

Q. The aural organism for African sleeping sickness is

1. Trypanosoma cruzi
2. Trypanosoma rhodesiense
3. Trypanosoma tangela
4. Trypanosoma gambiense

Q. The chill and fever recurring after 48 hours in benign tertian malaria is due to ________________.

1. Plasmodium vivax
2. P. malariae
3. P.. falciparum
4. None of the above