Practicing these Human Health and Disease MCQ for NEET is great for your exam prep. They cover important topics from Chapter 8 of your Biology textbook, helping you understand and remember key concepts.
If you're getting ready for your exams, these human health and disease class 12 MCQ can be a handy tool. They'll test your knowledge and get you more comfortable with the material. Plus, they're designed to align perfectly with what you're learning in class. So, give them a try and see how much you know about human health and disease MCQ.
Human Health and Disease MCQ PDF Download:
1. What are diseases that spread from one person to another called?
a) Chronic diseases
b) Non-communicable diseases
c) Degenerative diseases
d) Infectious diseases
Answer: d) Infectious diseases
Explanation: Infectious diseases are caused by pathogenic microorganisms (such as bacteria, viruses, fungi, or parasites) and can spread from one person to another.
2. What is health defined as?
a) Absence of disease
b) Complete physical fitness
c) State of complete physical, mental, and social well-being
d) Ability to lift heavy weights
Answer: c) State of complete physical, mental, and social well-being
Explanation: Health is defined as a state of complete physical, mental, and social well-being, not merely the absence of disease or infirmity.
3. What are the diseases caused by bacteria?
a) Tuberculosis
b) Influenza
c) Measles
d) Malaria
Answer: a) Tuberculosis
Explanation: Tuberculosis is a disease caused by the bacterium Mycobacterium tuberculosis. Other bacterial diseases include cholera, typhoid fever, and strep throat.
4. Which of the following diseases is not infectious?
a) Influenza
b) Diabetes
c) Tuberculosis
d) Chickenpox
Answer: b) Diabetes
Explanation: Diabetes is a non-communicable disease characterized by high blood sugar levels and is not caused by infectious agents.
5. Which disease is not an infection?
a) Pneumonia
b) Cancer
c) Malaria
d) Tuberculosis
Answer: b) Cancer
Explanation: Cancer is a group of diseases characterized by abnormal cell growth and is not caused by infectious pathogens.
6. What are the 3 non-infectious diseases?
a) Diabetes, hypertension, and asthma
b) Tuberculosis, malaria, and cholera
c) Measles, chickenpox, and influenza
d) Typhoid fever, dengue, and HIV/AIDS
Answer: a) Diabetes, hypertension, and asthma
Explanation: Diabetes, hypertension (high blood pressure), and asthma are examples of non-infectious diseases that are not caused by infectious agents.
7. Which of the following factors affect human health?
a) Diet and exercise
b) Genetics
c) Environment
d) All of the above
Answer: d) All of the above
Explanation: Human health is influenced by various factors including diet, exercise, genetics, environment, lifestyle, and access to healthcare.
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8. Elephantiasis is caused by _______.
a) Bacteria
b) Virus
c) Parasitic worm
d) Fungi
Answer: c) Parasitic worm
Explanation: Elephantiasis (lymphatic filariasis) is caused by parasitic worms transmitted through mosquito bites.
9. Plague is caused by the bacterium _______.
a) Escherichia coli
b) Yersinia pestis
c) Mycobacterium tuberculosis
d) Streptococcus pyogenes
Answer: b) Yersinia pestis
Explanation: Plague is an infectious disease caused by the bacterium Yersinia pestis, transmitted through fleas that infest rodents.
10. Typhoid fever in human beings is caused by:
a) Salmonella typhi
b) Mycobacterium leprae
c) Clostridium botulinum
d) Staphylococcus aureus
Answer: a) Salmonella typhi
Explanation: Typhoid fever is caused by the bacterium Salmonella typhi, typically transmitted through contaminated food or water.
11. Human Immunodeficiency Virus causes AIDS by attacking a type of white blood cell called _______.
a) Neutrophils
b) Eosinophils
c) T cells (T lymphocytes)
d) B cells (B lymphocytes)
Answer: c) T cells (T lymphocytes)
Explanation: HIV targets and destroys T cells, weakening the immune system and leading to acquired immunodeficiency syndrome (AIDS).
12. Which one of the following diseases is non-communicable?
a) Tuberculosis
b) Influenza
c) Diabetes
d) Malaria
Answer: c) Diabetes
Explanation: Diabetes is a non-communicable disease that is not transmitted from person to person.
13. Which of the following pathogens causes whooping cough?
a) Bordetella pertussis
b) Streptococcus pneumoniae
c) Haemophilus influenzae
d) Neisseria meningitidis
Answer: a) Bordetella pertussis
Explanation: Whooping cough (pertussis) is caused by the bacterium Bordetella pertussis, which infects the respiratory tract.
14. The common cold is caused by:
a) Influenza virus
b) Rhinovirus
c) Coronavirus
d) Adenovirus
Answer: b) Rhinovirus
Explanation: The common cold is most often caused by rhinoviruses, although other viruses such as coronaviruses and adenoviruses can also cause similar symptoms.
15. The most abundant class of immunoglobulins (Igs) in the body is:
a) IgA
b) IgE
c) IgG
d) IgM
Answer: c) IgG
Explanation: IgG antibodies are the most abundant class of immunoglobulins in the body and play a key role in long-term immunity against pathogens.
16. What is health defined as?
a) Absence of disease
b) State of complete physical, mental, and social well-being
c) Ability to perform physical activities
d) Consumption of nutritious food
Answer: b) State of complete physical, mental, and social well-being
Explanation: Health is defined as a state of complete physical, mental, and social well-being, not merely the absence of disease.
17. What are the examples of lifestyle diseases?
a) Tuberculosis and malaria
b) Diabetes and hypertension
c) Chickenpox and measles
d) Influenza and pneumonia
Answer: b) Diabetes and hypertension
Explanation: Lifestyle diseases (or non-communicable diseases) include conditions like diabetes, hypertension (high blood pressure), heart disease, and obesity, often associated with lifestyle choices.
18. What are diseases that spread from one person to another called?
a) Chronic diseases
b) Non-communicable diseases
c) Infectious diseases
d) Degenerative diseases
Answer: c) Infectious diseases
Explanation: Infectious diseases are caused by pathogens (such as bacteria, viruses, fungi, or parasites) and can spread from one person to another.
19. Which of the following diseases is not infectious: measles, typhoid, leprosy, leukemia?
a) Measles
b) Typhoid
c) Leprosy
d) Leukemia
Answer: d) Leukemia
Explanation: Leukemia is a type of cancer that affects blood-forming tissues and is not caused by infectious agents.
20. Which of the following diseases are considered infectious?
a) Tuberculosis
b) Influenza
c) Typhoid
d) All of the above
Answer: d) All of the above
Explanation: Tuberculosis, influenza, and typhoid are infectious diseases caused by bacteria or viruses that can be transmitted from person to person.
21. Which of the following is the name of the combination vaccine given to children to protect them against Tetanus, Whooping Cough, and Diphtheria?
a) MMR vaccine
b) DPT vaccine
c) HPV vaccine
d) Hepatitis B vaccine
Answer: b) DPT vaccine
Explanation: The DPT vaccine (also known as DTaP or Tdap) protects against diphtheria, tetanus (lockjaw), and pertussis (whooping cough) and is routinely given to children as part of immunization schedules.