Human Health and Diseases Chapter-Wise Test 8

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which immune cells are primarily responsible for phagocytosis?

T-lymphocytes
Macrophages
B-lymphocytes
Basophils
2

Macrophages are phagocytic cells that engulf and destroy pathogens, playing a key role in innate immunity.

Which of the following is the causative agent of filariasis?

Ascaris lumbricoides
Plasmodium vivax
Wuchereria bancrofti
Entamoeba histolytica
3

Filariasis is caused by the filarial worm Wuchereria bancrofti, which affects the lymphatic system.

Which of the following statements about autoimmune diseases is incorrect?

Autoimmune diseases occur when the immune system attacks self-tissues.
Autoimmune diseases are caused by external pathogens.
Rheumatoid arthritis is an example of an autoimmune disease.
Multiple sclerosis is an autoimmune disease.
2

Autoimmune diseases are not caused by external pathogens but result from the immune system attacking the body's own cells.

Which of the following pathogens is associated with causing whooping cough?

Mycobacterium tuberculosis
Bordetella pertussis
Corynebacterium diphtheriae
Salmonella typhi
2

Whooping cough is caused by Bordetella pertussis, which affects the respiratory system.

Which antibody is predominantly present in colostrum and helps in passive immunity of newborns?

IgG
IgA
IgE
IgM
2

IgA is the predominant antibody in colostrum and provides passive immunity to newborns.

Which of the following diseases is caused by a prion?

AIDS
Creutzfeldt-Jakob disease
Hepatitis
Malaria
2

Creutzfeldt-Jakob disease (CJD) is caused by prions, which are misfolded proteins that damage the nervous system.

Which of the following is a function of the lymphatic system?

Transport of oxygen
Production of hormones
Removal of interstitial fluid and immune function
Digestion of carbohydrates
3

The lymphatic system removes interstitial fluid, transports lymphocytes, and helps in immune defense.

Which fungal infection affects the skin, nails, and scalp?

Malaria
Typhoid
Ringworm
Pneumonia
3

Ringworm is a fungal infection caused by species of Microsporum, Trichophyton, and Epidermophyton.

Which of the following statements about the inflammatory response is correct?

Inflammation decreases blood flow to the affected area.
Inflammation helps in pathogen elimination.
Inflammation always causes harm to the body.
Inflammation is not a part of the immune system.
2

Inflammation is an immune response that helps eliminate pathogens and repair damaged tissues.

Which of the following statements about vaccines is correct?

Vaccines stimulate the production of memory cells.
Vaccines provide passive immunity.
Vaccines directly kill pathogens.
Vaccines do not involve the immune system.
1

Vaccines stimulate the immune system to produce memory cells, providing long-term immunity.

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