Human Health and Diseases Chapter-Wise Test 24

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which of the following statements about innate immunity is correct?

Innate immunity involves memory cell formation.
Innate immunity provides immediate defense.
Innate immunity is specific to particular pathogens.
Innate immunity is acquired after birth.
2

Innate immunity is a non-specific defense mechanism that provides immediate protection against pathogens.

Which of the following is a vector-borne disease?

Typhoid
Dengue
Tuberculosis
Pneumonia
2

Dengue is a vector-borne disease transmitted by Aedes mosquitoes.

Which of the following statements about passive immunity is correct?

Passive immunity is acquired through the transfer of antibodies.
Passive immunity lasts for a lifetime.
Passive immunity involves the production of memory cells.
Passive immunity is always naturally acquired.
1

Passive immunity is acquired through the transfer of ready-made antibodies, such as maternal antibodies or antibody injections.

Which of the following statements about inflammation is incorrect?

Inflammation increases blood flow to the affected area.
Inflammation helps in immune defense.
Inflammation is not part of the immune response.
Inflammation can lead to swelling and redness.
3

Inflammation is a key part of the immune response, helping to eliminate pathogens and repair tissue damage.

Which of the following is an early symptom of HIV/AIDS?

Loss of immunity
Paralysis
Increased red blood cell count
Joint pain
1

HIV/AIDS leads to a progressive loss of immunity, making the infected person more susceptible to opportunistic infections.

Which of the following vaccines is an example of a toxoid vaccine?

Polio vaccine
BCG vaccine
Tetanus vaccine
Rabies vaccine
3

The tetanus vaccine is a toxoid vaccine, meaning it contains an inactivated toxin to stimulate immunity.

Which of the following statements about inflammation is correct?

Inflammation decreases blood flow to the affected area.
Inflammation is a response to injury or infection.
Inflammation is always harmful to the body.
Inflammation occurs only in bacterial infections.
2

Inflammation is the body’s natural response to injury or infection, helping to eliminate pathogens and repair tissue damage.

Which of the following is a causative agent of ascariasis?

Plasmodium
Ascaris lumbricoides
Wuchereria bancrofti
Entamoeba histolytica
2

Ascariasis is caused by the helminth Ascaris lumbricoides, which infects the intestine.

Which type of hypersensitivity reaction is responsible for anaphylaxis?

Type I
Type II
Type III
Type IV
1

Type I hypersensitivity reactions, mediated by IgE, lead to anaphylaxis, which is a severe allergic reaction.

Which vector-borne disease is caused by Plasmodium falciparum?

Filariasis
Dengue
Malignant malaria
Typhoid
3

Plasmodium falciparum causes malignant malaria, the most severe and life-threatening form of malaria.

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