This practice test includes 25 questions from the chapter 'Human health and disease' class 12th biology. Helpful for NEET, and other competitive exams.
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Q.1.
A person with sickle cell anaemia is
- more prone to malaria
- more prone to typhoid
- less prone to malaria
- less prone to typhoid
Answer:
(c) less prone to malaria
Explanation: A person with sickle cell anaemia is less prone to malaria
Explanation: A person with sickle cell anaemia is less prone to malaria
Q.2.
Which one of the following disease is non – communicable ?
- Diphtheria
- Flu
- Cancer
- Malaria
Answer:
(c) Cancer
Explanation: Cancer
Explanation: Cancer
Q.3.
Which of the following pairs contains an infectious and a non-infectious disease respectively ?
- Typhoid and AIDS
- AIDS and cancer
- Pneumonia and malaria
- Cancer and malaria
Answer:
(b) AIDS and cancer
Explanation: AIDS and cancer contains an infectious and a non-infectious disease respectively
Explanation: AIDS and cancer contains an infectious and a non-infectious disease respectively
Q.4.
Typhoid fever in human beings is caused by
- Plasmodium vivax
- Trichophyton
- Salmonella typhi
- Rhinoviruses
Answer:
(c) Salmonella typhi
Explanation: Typhoid fever in human beings is caused by Salmonella typhi
Explanation: Typhoid fever in human beings is caused by Salmonella typhi
Q.5.
Which of the following is the bacterial disease in humans ?
- Dysentery
- Malaria
- Plague
- Both (a) & (c)
Answer:
(d) Both (a) & (c)
Explanation: Both (a) & (c) is the bacterial disease in humans
Explanation: Both (a) & (c) is the bacterial disease in humans
Q.6.
Which of the following pathogens causes whooping coough ?
- Legionella spp.
- Burcella melitensis
- Vibrio cholerae
- Burcella melitensis
Answer:
(b) Burcella melitensis
Explanation: Burcella melitensis causes whooping coough
Explanation: Burcella melitensis causes whooping coough
Q.7.
Which one of the following sets includes bacterial diseases ?
- Tetanus, tuberculosis, measles
- Diptheria, leprosy, plague
- Cholera, typhoid, mumps
- Malaria, mumps, poliomyelits
Answer:
(b) Diptheria, leprosy, plague
Explanation: Diptheria, leprosy, plague sets includes bacterial diseases
Explanation: Diptheria, leprosy, plague sets includes bacterial diseases
Q.8.
The common cold is caused by
- Rhino viruses
- Streptococcus pnemoniae
- Salmonella typhimurium
- Plasmodium vivax.
Answer:
(a) Rhino viruses
Explanation: The common cold is caused by Rhino viruses.
Explanation: The common cold is caused by Rhino viruses.
Q.9.
Hepatitis B is transmitted through
- sneezing
- female Anopheles
- coughing
- blood transfusion
Answer:
(b) female Anopheles
Explanation: female Anopheles
Explanation: female Anopheles
Q.10.
A toxic substance, responsible for the chills and high fever recurring every three to four days in malarial fever, is
- interferon
- haemozoin
- hirudin
- colostrum
Answer:
(b) haemozoin
Explanation: haemozoin
Explanation: haemozoin
Q.11.
Humoral immunity is associated with
- T-cells
- B-cells
- macrophages
- both (a) and (b)
Answer:
(b) B-cells
Explanation: Humoral immunity is associated with B-cells
Explanation: Humoral immunity is associated with B-cells
Q.12.
The antibody which can cross placental barrier is
- IgA
- JgE
- IgM
- IgG
Answer:
(d) IgG
Explanation: IgG
Explanation: IgG
Q.13.
The most abundant class of immunoglobulins (Igs) in the body is
- IgA
- IgG
- IgE
- IgM
Answer:
(b) IgG
Explanation: IgG
Explanation: IgG
Q.14.
A protein or polysaccharide molecule that stimulates antibody formation.
- antigen
- antibiotics
- exotoxin
- endotoxins
Answer:
(a) antigen
Explanation: A protein or polysaccharide molecule that stimulates antibody formation is known as antigen
Explanation: A protein or polysaccharide molecule that stimulates antibody formation is known as antigen
Q.15.
Passive immunity can be conferred directly by
- vaccines
- antitoxins
- colostrum
- both (b) & (c)
Answer:
(d) both (b) & (c)
Explanation: both (b) & (c)
Explanation: both (b) & (c)
Q.16.
Which form of pathogen is used in vaccination ?
- Activated and strong pathogenic antigens
- Inactivated and weakened pathogenic antigens
- Hyperactive and strong pathogen
- Preformed antibodies
Answer:
(b) Inactivated and weakened pathogenic antigens
Explanation: Inactivated and weakened pathogenic antigens
Explanation: Inactivated and weakened pathogenic antigens
Q.17.
Injection of antitoxin in tetanus confers which type of immunisation ?
- Active immunisation
- Passive immunisation
- Auto-immunisation
- Humoral immunisation
Answer:
(b) Passive immunisation
Explanation: Passive immunisation
Explanation: Passive immunisation
Q.18.
The term ‘antitoxin’ refers to a preparation containing
- B-lymphoctyes and T-lymphocytes
- antibodies to the toxin
- weakend pathogen
- inactivated T-lymphocytes.
Answer:
(b) antibodies to the toxin
Explanation: The term ‘antitoxin’ refers to a preparation containing antibodies to the toxin
Explanation: The term ‘antitoxin’ refers to a preparation containing antibodies to the toxin
Q.19.
Vaccine against polio viruses is an example of
- auto-immunisation
- passive immunisation
- active immunisation
- simple immunisation
Answer:
(c) active immunisation
Explanation: active immunisation
Explanation: active immunisation
Q.20.
During the life cycle of Plasmodium, sexual reproduction takes place in which of the following hosts ?
- Human
- Female Anopheles mosquito
- Male Anopheles mosquito
- Both (a) and (b)
Answer:
(b) Female Anopheles mosquito
Explanation: During the life cycle of Plasmodium, sexual reproduction takes place in Female Anopheles mosquito
Explanation: During the life cycle of Plasmodium, sexual reproduction takes place in Female Anopheles mosquito
Q.21.
Amoebic dysentery (amoebiasis) is caused by
- Entamoeba histolytica
- E. coli
- Streptococcus pneumoniae
- Trichophyton
Answer:
(a) Entamoeba histolytica
Explanation: Amoebic dysentery (amoebiasis) is caused by Entamoeba histolytica
Explanation: Amoebic dysentery (amoebiasis) is caused by Entamoeba histolytica
Q.22.
Which one of the following diseases cannot be cured by taking antibiotics ?
- Plague
- Amoebiasis
- Leprosy
- Whooping cough
Answer:
(b) Amoebiasis
Explanation: Amoebiasis cannot be cured by taking antibiotics
Explanation: Amoebiasis cannot be cured by taking antibiotics
Q.23.
Elephantiasis, a chronic inflammation that results in gross deformities is caused by
- Ascaris
- E.coli
- Wuchereria
- Trichophyton
Answer:
(c) Wuchereria
Explanation: Elephantiasis, a chronic inflammation that results in gross deformities is caused by Wuchereria
Explanation: Elephantiasis, a chronic inflammation that results in gross deformities is caused by Wuchereria
Q.24.
Which of the following is affected by the infection of Wuchereria bancrofti ?
- Lymphatic vessels
- Respiratory system
- Nervous system
- Blood circulation
Answer:
(a) Lymphatic vessels
Explanation: Lymphatic vessels
Explanation: Lymphatic vessels
Q.25.
Which of the following diseases is transmitted by the bite of the female mosquito vector ?
- Filariasis
- Amoebiasis
- Typhoid
- Pneumonia
Answer:
(a) Filariasis
Explanation: Filariasis
Explanation: Filariasis
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