Human Health and Diseases
Test 1

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which of the following diseases is NOT transmitted through a mosquito bite?

Malaria
Dengue
Amoebiasis
Filariasis
3

Amoebiasis is caused by Entamoeba histolytica and is transmitted through contaminated food and water, not mosquitoes.

Which of the following is a preventive measure against vector-borne diseases?

Consuming antibiotics
Using mosquito nets and repellents
Drinking boiled water
Maintaining a high-protein diet
2

Using mosquito nets, repellents, and eliminating stagnant water help prevent vector-borne diseases like malaria and dengue.

Which type of cells produce antibodies in the human body?

T-lymphocytes
B-lymphocytes
Macrophages
Neutrophils
2

B-lymphocytes differentiate into plasma cells, which produce antibodies for immune responses.

Which of the following is the main causative agent of the common cold?

Influenza virus
Rhinovirus
Coronavirus
Adenovirus
2

Rhinoviruses are the most common causative agents of the common cold.

Which of the following is a characteristic feature of malignant tumors?

Limited growth and no metastasis
Uncontrolled growth and metastasis
Presence of a capsule around the tumor
Localized inflammation
2

Malignant tumors exhibit uncontrolled growth and have the ability to metastasize, spreading to other parts of the body.

Which of the following is the causative agent of cholera?

Salmonella typhi
Vibrio cholerae
Plasmodium falciparum
Mycobacterium tuberculosis
2

Cholera is caused by Vibrio cholerae, a bacterium that spreads through contaminated water and food.

Which of the following statements about passive immunity is correct?

Passive immunity involves the production of memory cells.
Passive immunity provides short-term protection.
Passive immunity is acquired through vaccination.
Passive immunity lasts for a lifetime.
2

Passive immunity provides short-term protection as it involves the transfer of ready-made antibodies rather than immune system activation.

Which of the following statements about cell-mediated immunity is correct?

Cell-mediated immunity is provided by B-lymphocytes.
Cytotoxic T-cells play a key role in cell-mediated immunity.
Cell-mediated immunity involves the production of antibodies.
Cell-mediated immunity does not target virus-infected cells.
2

Cell-mediated immunity is primarily carried out by cytotoxic T-cells, which attack virus-infected and cancerous cells.

Which of the following statements about the adaptive immune system is correct?

The adaptive immune system provides a non-specific response.
The adaptive immune system does not involve memory cells.
The adaptive immune system includes B-lymphocytes and T-lymphocytes.
The adaptive immune system acts immediately without prior exposure.
3

The adaptive immune system involves B-lymphocytes and T-lymphocytes, providing a specific response and memory against pathogens.

Which of the following is NOT a bacterial disease?

Typhoid
Pneumonia
Common cold
Diphtheria
3

Common cold is caused by rhinoviruses, whereas typhoid, pneumonia, and diphtheria are bacterial infections.

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