Health quiz

Health Questions

1. What is the main function of red blood cells?
   A. Fight infections
   B. Carry oxygen
   C. Digest food
   D. Produce hormones
   Answer: B — Carry oxygen
2. Which vitamin is mainly produced when the skin is exposed to sunlight?
   A. Vitamin A
   B. Vitamin B12
   C. Vitamin C
   D. Vitamin D
   Answer: D — Vitamin D
3. Which organ stores bile?
   A. Gallbladder
   B. Pancreas
   C. Stomach
   D. Spleen
   Answer: A — Gallbladder
4. Which mineral is important for strong bones and teeth?
   A. Iron
   B. Calcium
   C. Sodium
   D. Potassium
   Answer: B — Calcium
5. Which part of the body controls balance and coordination?
   A. Cerebellum
   B. Heart
   C. Spinal cord
   D. Liver
   Answer: A — Cerebellum
6. What is the largest organ of the human body?
   A. Liver
   B. Brain
   C. Skin
   D. Lungs
   Answer: C — Skin
7. Which organ produces bile?
   A. Liver
   B. Kidney
   C. Pancreas
   D. Stomach
   Answer: A — Liver
8. What is the normal body temperature approximately?
   A. 35°C
   B. 37°C
   C. 39°C
   D. 41°C
   Answer: B — 37°C
9. Which blood cells help fight infections?
   A. Red blood cells
   B. Platelets
   C. White blood cells
   D. Plasma cells
   Answer: C — White blood cells
10. What do platelets mainly help with?
    A. Digestion
    B. Blood clotting
    C. Breathing
    D. Vision
    Answer: B — Blood clotting
11. Which nutrient is the body's main source of energy?
    A. Carbohydrates
    B. Vitamins
    C. Minerals
    D. Water
    Answer: A — Carbohydrates
12. Which vitamin is commonly associated with healthy vision?
    A. Vitamin A
    B. Vitamin C
    C. Vitamin D
    D. Vitamin K
    Answer: A — Vitamin A
13. Which organ is primarily responsible for pumping blood?
    A. Liver
    B. Heart
    C. Lungs
    D. Brain
    Answer: B — Heart
14. Which part of the eye controls how much light enters?
    A. Retina
    B. Cornea
    C. Iris
    D. Lens
    Answer: C — Iris
15. Which nutrient is especially important for building and repairing muscles?
    A. Protein
    B. Sugar
    C. Water
    D. Fiber
    Answer: A — Protein