A common cause of pneumonia in humans is:

1. Streptococcus pyogenes 2. Hemophilus influenzae
3. Staphylococcus aureus 4. Rotavirus

Subtopic:  Pneumonia & Related Questions | Common Cold & Malaria Introduction |
 88%
From NCERT
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Rhinovirus does not affect:

1.  Lungs 2.  Nose
3.  Pharynx  4.  Larynx

Subtopic:  Common Cold & Malaria Introduction |
 87%
From NCERT
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Malignant tertian malaria is caused by Plasmodium:

1. vivax 2.  ovale
3. falciparum 4. malariae
Subtopic:  Common Cold & Malaria Introduction |
 91%
From NCERT
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The mechanical carrier of the causative agent of amoebic dysentery is:

1.  A protozoan 2.  House fly
3.  Mosquito 4.  Rodent

Subtopic:  Amoebiasis |
 79%
From NCERT
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Aedes aegypti is not a vector for:

1.  Dengue 2.  Chikungunya
3.  Japanese encephalitis 4.  Yellow fever

Subtopic:  Common Cold & Malaria Introduction | Treatment & Life Cycle of Malaria |
 71%
From NCERT
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Which of the following is also sometimes called as mosquito fish?

1. Bombay duck 2. Gambusia
3. Pacific salmon 4. Pomfret
Subtopic:  Common Cold & Malaria Introduction |
 94%
From NCERT
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What is incorrect regarding innate immunity?

1. It is present at the time of birth
2. Physiological barriers prevent microbial growth
3. Natural killers, a cellular barrier, are a type of monocyte
4. It is a non-specific type of defense
Subtopic:  Details of Immunity |
 67%
From NCERT
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Anamnestic response in acquired immunity is due to the fact that it is:

1. characterized by memory 2. pathogen specific
3. huge in magnitude 4. due to lymphocytes
Subtopic:  Details of Immunity |
 82%
From NCERT
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B cells:

1. Do not produce antibodies but help T cells produce them
2. Are pathogen specific but do not retain the memory of previous encounters
3. Lack ability to distinguish between self and non-self
4. Are involved in humoral immune response
Subtopic:  Details of Immunity |
 78%
From NCERT
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In an antibody molecule, an antigen binding site is located:

1. In the constant portion

2. At the C – terminus of a heavy chain

3. Between a light and a heavy chain

4. Between two heavy chains

Subtopic:  Details of Immunity |
 81%
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