Health & Disease: 16 MCQs with answers

Diabetes

Diabetes is a non-communicable disease because it cannot be transmitted from one person to another, unlike tuberculosis, malaria, and influenza.

Protozoan

Malaria is caused by the protozoan parasite *Plasmodium*, which is transmitted through the bite of an infected female *Anopheles* mosquito.

Dengue

Dengue is transmitted by the bite of an infected *Aedes* mosquito, making it a vector-borne disease.

Virus

AIDS is caused by the Human Immunodeficiency Virus (HIV), which attacks the immune system.

Tuberculosis

Tuberculosis is caused by the bacterium *Mycobacterium tuberculosis*.

Common cold

The common cold is caused by viruses, most commonly rhinoviruses.

Tuberculosis

Tuberculosis is a communicable disease because it can spread from an infected person to a healthy person through the air.

Obesity

Obesity is often caused by poor diet and lack of physical activity, making it a lifestyle disease.

False

AIDS is caused by the Human Immunodeficiency Virus (HIV), not a bacterium.

True

The female *Anopheles* mosquito transmits the *Plasmodium* parasite that causes malaria.

Skin

The skin is a physical barrier that prevents the entry of pathogens, forming part of the innate immune system.

Helper T cells

HIV primarily infects and destroys helper T cells (CD4+ T cells), leading to severe immunodeficiency.

Rheumatoid arthritis

Rheumatoid arthritis is an autoimmune disease where the immune system mistakenly attacks the body's own tissues, particularly the joints.

Ringworm

Ringworm is a fungal infection of the skin caused by dermatophytes.

Amoebiasis

Amoebiasis is caused by the protozoan *Entamoeba histolytica*.

Filariasis

Filariasis is caused by parasitic worms (helminths) such as *Wuchereria bancrofti*.