Biology · Science General
Disease Causative Agents
2,531 Questions
Disease causative agents questions test your understanding of viral, bacterial, and fungal infections, along with their transmission methods. These are common topics in general science sections of SSC and railways exams. Practice these questions to accurately identify disease pathogens and symptoms.
Viral diseasesFoodborne illnessesDisease transmission methodsExtrinsic disease factorsCommon pathogens
Disease Causative Agents Questions
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Only (a) and (b)
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Only (b), (c) and (d)
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Only (c) and (e)
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Only (a) and (d)
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Only (a), (c) and (e)
D
Correct answer
Explanation
Yes, it is the correct answer, as both cholera and typhoid are caused by bacteria present in the sewage.
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Chronic granulomatous disease
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Chediak-Higashi disease
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Leukocyte adhesion deficiency
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Hashimoto's disease
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Streptococcal infection
A
Correct answer
Explanation
There is a failure to make reactive oxygen intermediates and to raise the pH in the phagocytic vacuole which facilitates microbicidal action.
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B-cell deficiency
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T-cell deficiency
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Phagocyte deficiency
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Complement deficiency
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Eosinophil deficiency
B
Correct answer
Explanation
Production of cytokines and of cytotoxic T-cells are important in the protective response.
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X-linked MASA syndrome
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Hodgkin's lymphoma
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B-cell lymphomas
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Nasopharyngeal cancer
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Burkitt's lymphoma
A
Correct answer
Explanation
MASA syndrome, is a rare X-linked recessive neurological disorder. It is caused by mutations in the L1CAM gene.
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blastomycosis
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histoplasmosis
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mucormycosis
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pneumocystis pneumonia
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sporotrichosis
D
Correct answer
Explanation
Pneumocystis pneumonia is a disease caused by the fungus Pneumocystis jirovecii. It is one of the most frequent and severe opportunistic infections in people with weakened immune systems, particularly people with HIV/AIDS.
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meningitis
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duodenal ulcer
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hyperviscosity syndrome
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non-Hodgkin's lymphoma
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multiple myeloma
C
Correct answer
Explanation
High levels of serum IgM (a large pentameric protein) make the plasma hyperviscous and this presents with headache, visual disturbances, nose bleeds, malaise or exertional dyspnoea.
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meningitis
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duodenal ulcer
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gangrene of the toes
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non-Hodgkin's lymphoma
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multiple myeloma
D
Correct answer
Explanation
The non-Hodgkin lymphomas (NHLs) are diverse group of blood cancers that include any kind of lymphoma except Hodgkin's lymphomas. Types of NHL vary significantly in their severity, from slow growing to very aggressive. Since this is a T cell malignancy T cell NHL may follow.
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commensals
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pathogens
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biological nitrogen fixers
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antibodies
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none of these
B
Correct answer
Explanation
Yes, disease-causing microorganisms are called pathogens.
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Cholera
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Typhoid
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Malaria
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Hepatitis B
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Measles
E
Correct answer
Explanation
Yes, it is correct. Measles is air borne disease.
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Cholera
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Measles
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Chicken pox
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Polio
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Hepatitis B
A
Correct answer
Explanation
Yes, it is the correct answer. All other diseases are caused by virus, whereas cholera is caused by bacteria.
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Only a
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Only b
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Both a and b
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Only c
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Both b and d
C
Correct answer
Explanation
Yes, it is the correct answer. It is both a cattle and human disease.
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Foot and mouth
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Anthrax
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Rinderpest
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Dropsy
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Black quarter
D
Correct answer
Explanation
Dropsy is not a common infectious disease of cattle. It is a common disease common in fishes.
C
Correct answer
Explanation
Trachoma is a bacterial infection of the eye caused by Chlamydia trachomatis. It is the world's leading infectious cause of blindness and affects the conjunctiva and cornea. It does not affect the throat, lungs, or liver.
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Diseases caused by flies
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Viral diseases
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Water borne diseases
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Fungal diseases
C
Correct answer
Explanation
Hepatitis, polio and cholera are water borne diseases.
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Malaria
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Dengue
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Hepatitis
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Dysentery
D
Correct answer
Explanation
Dysentery is caused by bacteria.