Biology in Health - Human Health & Disease
Q. What is the main function of antibodies in the immune system? (2021)
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A.
To destroy pathogens
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B.
To produce hormones
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C.
To transport oxygen
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D.
To digest food
Solution
Antibodies are proteins produced by the immune system to identify and neutralize pathogens such as bacteria and viruses.
Correct Answer: A — To destroy pathogens
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Q. What is the main function of the immune system? (2022)
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A.
Digestion
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B.
Respiration
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C.
Protection against pathogens
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D.
Circulation
Solution
The immune system's primary function is to protect the body against pathogens and diseases.
Correct Answer: C — Protection against pathogens
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Q. What is the main mode of transmission for HIV? (2021)
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A.
Airborne
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B.
Vector-borne
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C.
Sexual contact
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D.
Contaminated water
Solution
HIV is primarily transmitted through sexual contact.
Correct Answer: C — Sexual contact
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Q. What is the main vector for malaria transmission? (2021)
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A.
Housefly
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B.
Mosquito
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C.
Tick
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D.
Flea
Solution
Malaria is primarily transmitted by the female Anopheles mosquito.
Correct Answer: B — Mosquito
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Q. What is the main vector for the transmission of malaria? (2019)
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A.
Housefly
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B.
Mosquito
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C.
Tick
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D.
Flea
Solution
Malaria is primarily transmitted through the bite of infected female Anopheles mosquitoes.
Correct Answer: B — Mosquito
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Q. What is the primary cause of AIDS? (2020)
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A.
Bacteria
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B.
Virus
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C.
Fungi
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D.
Protozoa
Solution
AIDS is caused by the Human Immunodeficiency Virus (HIV), which is a virus.
Correct Answer: B — Virus
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Q. What is the primary cause of tuberculosis? (2020)
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A.
Bacteria
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B.
Virus
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C.
Fungi
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D.
Protozoa
Solution
Tuberculosis is primarily caused by the bacterium Mycobacterium tuberculosis.
Correct Answer: A — Bacteria
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Q. What is the primary function of the immune system? (2022)
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A.
To regulate body temperature
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B.
To protect against diseases
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C.
To digest food
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D.
To circulate blood
Solution
The primary function of the immune system is to protect the body against diseases and infections.
Correct Answer: B — To protect against diseases
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Q. What is the role of the spleen in the human body? (2021)
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A.
Production of insulin
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B.
Filtration of blood
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C.
Digestion of food
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D.
Respiration
Solution
The spleen plays a crucial role in filtering blood and removing old or damaged red blood cells.
Correct Answer: B — Filtration of blood
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Q. What type of pathogen causes AIDS? (2023)
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A.
Bacteria
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B.
Virus
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C.
Fungi
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D.
Parasite
Solution
AIDS is caused by the Human Immunodeficiency Virus (HIV), which is a virus.
Correct Answer: B — Virus
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Q. What type of pathogen causes cholera? (2021)
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A.
Bacteria
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B.
Virus
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C.
Fungi
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D.
Parasite
Solution
Cholera is caused by the bacterium Vibrio cholerae.
Correct Answer: A — Bacteria
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Q. Which disease is caused by a deficiency of Vitamin C? (2022)
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A.
Scurvy
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B.
Rickets
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C.
Beriberi
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D.
Pellagra
Solution
Scurvy is caused by a deficiency of Vitamin C, leading to symptoms like bleeding gums and weakness.
Correct Answer: A — Scurvy
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Q. Which of the following diseases is caused by a protozoan? (2023)
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A.
Malaria
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B.
Tuberculosis
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C.
HIV/AIDS
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D.
Hepatitis
Solution
Malaria is caused by protozoan parasites of the genus Plasmodium.
Correct Answer: A — Malaria
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Q. Which of the following diseases is characterized by the destruction of insulin-producing cells? (2022)
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A.
Type 1 Diabetes
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B.
Type 2 Diabetes
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C.
Hypertension
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D.
Obesity
Solution
Type 1 Diabetes is characterized by the autoimmune destruction of insulin-producing beta cells in the pancreas.
Correct Answer: A — Type 1 Diabetes
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Q. Which of the following is a common symptom of diabetes? (2019)
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A.
Increased thirst
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B.
Skin rash
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C.
Headache
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D.
Nausea
Solution
Increased thirst is a common symptom of diabetes due to high blood sugar levels.
Correct Answer: A — Increased thirst
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Q. Which of the following is a method of preventing the spread of infectious diseases? (2022)
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A.
Vaccination
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B.
Eating healthy
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C.
Drinking water
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D.
Exercising
Solution
Vaccination is a key method for preventing the spread of infectious diseases by building immunity.
Correct Answer: A — Vaccination
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Q. Which of the following is a non-communicable disease? (2022)
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A.
Influenza
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B.
Diabetes
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C.
Hepatitis
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D.
Tuberculosis
Solution
Diabetes is classified as a non-communicable disease.
Correct Answer: B — Diabetes
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Q. Which of the following is a symptom of diabetes? (2020)
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A.
Frequent urination
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B.
High fever
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C.
Coughing
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D.
Skin rash
Solution
Frequent urination is a common symptom of diabetes due to high blood sugar levels.
Correct Answer: A — Frequent urination
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Q. Which of the following is a symptom of malaria? (2018)
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A.
High fever
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B.
Cough
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C.
Rash
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D.
Nausea
Solution
High fever is a common symptom of malaria, caused by Plasmodium parasites.
Correct Answer: A — High fever
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Q. Which of the following is a symptom of tuberculosis? (2019)
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A.
High fever
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B.
Persistent cough
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C.
Skin rash
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D.
Joint pain
Solution
A persistent cough is a common symptom of tuberculosis, along with other respiratory issues.
Correct Answer: B — Persistent cough
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Q. Which of the following is a vector for malaria? (2019)
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A.
Housefly
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B.
Mosquito
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C.
Tick
-
D.
Louse
Solution
Malaria is transmitted by the female Anopheles mosquito, which acts as a vector.
Correct Answer: B — Mosquito
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Q. Which of the following is a vector for the transmission of dengue fever? (2021)
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A.
Housefly
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B.
Mosquito
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C.
Tick
-
D.
Louse
Solution
Dengue fever is transmitted by Aedes mosquitoes.
Correct Answer: B — Mosquito
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Q. Which of the following is NOT a sexually transmitted disease? (2020)
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A.
Syphilis
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B.
Gonorrhea
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C.
Hepatitis B
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D.
Tuberculosis
Solution
Tuberculosis is primarily a respiratory disease and is not classified as a sexually transmitted disease.
Correct Answer: D — Tuberculosis
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Q. Which vitamin deficiency leads to scurvy? (2019)
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A.
Vitamin A
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B.
Vitamin B12
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C.
Vitamin C
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D.
Vitamin D
Solution
Scurvy is caused by a deficiency of Vitamin C.
Correct Answer: C — Vitamin C
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