Everyday Science

Common Human Diseases & Their Causes MCQs With Answer

Which microorganism causes tuberculosis?
A) Virus
B) Bacteria
C) Fungus
D) Protozoa

Which deficiency causes scurvy?
A) Vitamin A
B) Vitamin B12
C) Vitamin C
D) Vitamin D

What is the main cause of malaria?
A) Virus
B) Bacteria
C) Protozoa
D) Fungus

Which organ is primarily affected by hepatitis?
A) Lungs
B) Liver
C) Heart
D) Kidneys

Which disease is caused by the HIV virus?
A) Tuberculosis
B) Malaria
C) AIDS
D) Typhoid

What is the main cause of cholera?
A) Contaminated water
B) Air pollution
C) Mosquito bites
D) Radiation exposure

Which bacteria is responsible for typhoid fever?
A) Staphylococcus aureus
B) Salmonella typhi
C) Bacillus anthracis
D) Vibrio cholerae

Which disease is known as “silent killer” due to its lack of symptoms?
A) Diabetes
B) Hypertension
C) Tuberculosis
D) Influenza

What is the leading cause of lung cancer?
A) Viral infection
B) Smoking
C) Excess sugar consumption
D) Lack of sleep

Which disease is caused by a deficiency of insulin?
A) Hypertension
B) Diabetes
C) Anemia
D) Osteoporosis

Which vitamin deficiency causes rickets in children?
A) Vitamin A
B) Vitamin B12
C) Vitamin C
D) Vitamin D

Which disease is commonly spread by mosquitoes?
A) Tuberculosis
B) Influenza
C) Malaria
D) Hepatitis

Which organ does pneumonia primarily affect?
A) Liver
B) Brain
C) Lungs
D) Stomach

Which bacteria is responsible for food poisoning?
A) Escherichia coli
B) Mycobacterium tuberculosis
C) Plasmodium falciparum
D) Treponema pallidum

Which condition is caused by high levels of cholesterol in the blood?
A) Osteoporosis
B) Anemia
C) Atherosclerosis
D) Beriberi

Which disease is caused by a deficiency of iron?
A) Anemia
B) Rickets
C) Goiter
D) Scurvy

What is the main cause of jaundice?
A) Kidney failure
B) High blood pressure
C) Liver dysfunction
D) Brain infection

Which virus causes chickenpox?
A) Influenza virus
B) Varicella-zoster virus
C) Hepatitis virus
D) Rabies virus

Which disease is characterized by high blood sugar levels?
A) Hypertension
B) Diabetes
C) Asthma
D) Epilepsy

Which disease is commonly known as “whooping cough”?
A) Influenza
B) Tuberculosis
C) Pertussis
D) Bronchitis

Which parasite causes sleeping sickness?
A) Giardia
B) Trypanosoma
C) Plasmodium
D) Salmonella

What is the primary cause of osteoporosis?
A) Excess protein intake
B) Lack of calcium and vitamin D
C) High cholesterol levels
D) Excessive water consumption

Which organ is affected by meningitis?
A) Brain
B) Liver
C) Heart
D) Lungs

Which disease is caused by iodine deficiency?
A) Anemia
B) Goiter
C) Beriberi
D) Scurvy

Which viral disease has been eradicated worldwide?
A) Smallpox
B) Polio
C) Measles
D) Rabies

Which disease is caused by the Epstein-Barr virus?
A) Influenza
B) Tuberculosis
C) Mononucleosis
D) Tetanus

Which condition is characterized by chronic inflammation of the joints?
A) Asthma
B) Arthritis
C) Epilepsy
D) Hypertension

Which of the following diseases is caused by a fungal infection?
A) Ringworm
B) Tuberculosis
C) Cholera
D) Typhoid

What is the main cause of stroke?
A) Blockage or rupture of blood vessels in the brain
B) Excess sugar intake
C) Bacterial infection
D) Vitamin deficiency

Which of the following is a non-communicable disease?
A) Influenza
B) Malaria
C) Diabetes
D) Tuberculosis

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