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Immune System and Defenses

Bone marrow makes the B cells that produce antibodies, the skin remains the first physical barrier, and vitamin C boosts leukocytes. Test what you really know about your immunity.

10

Questions

1

Minute

Tip: Use keys 1-4 to answer quickly

The 10 quiz questions

Question 1 : What type of blood cells fights infections?

Possible answers:

  • Les globules rouges
  • Les plaquettes
  • Les globules blancs
  • Le plasma

Explanation: White blood cells (leukocytes) are the immune system cells that defend the body against infections.

Question 2 : What is the process called by which the body protects itself after a vaccine?

Possible answers:

  • Breathing
  • La circulation
  • La digestion
  • L'immunisation

Explanation: Immunization is the process by which the body develops specific defenses against a pathogen after vaccination.

Question 3 : Which vitamin is essential for strengthening the immune system?

Possible answers:

  • Vitamine B12
  • Vitamine A
  • Vitamine K
  • Vitamine C

Explanation: Vitamin C is known for its role in strengthening immune defenses and fighting infections.

Question 4 : Which organ produces antibodies to fight diseases?

Possible answers:

  • The stomach
  • La moelle osseuse
  • The liver
  • Les poumons

Explanation: The spleen and lymph nodes produce antibodies, but it is primarily the bone marrow that generates antibody-producing B cells.

Question 5 : How many hours of sleep should an adult get per night on average?

Possible answers:

  • 4-5 heures
  • 5-6 heures
  • 7-9 heures
  • 10-12 heures

Explanation: Experts recommend 7 to 9 hours of sleep for adults. Less than 6 hours increases the risk of health problems.

Question 6 : What is the body's first line of defense against germs?

Possible answers:

  • The skin
  • Les muscles
  • The heart
  • The brain

Explanation: The skin is the first physical line of defense against pathogens by preventing their entry.

Question 7 : What simple action helps most to prevent disease transmission?

Possible answers:

  • Dormir beaucoup
  • Se laver les mains
  • Taking vitamins
  • Faire du sport

Explanation: Hand washing is the most effective hygiene measure to prevent the transmission of infections.

Question 8 : What does fever generally indicate?

Possible answers:

  • An excess of vitamins
  • The body is fighting an infection
  • Un manque de sommeil
  • A food allergy

Explanation: Fever is a defense reaction of the body that indicates the immune system is fighting an infection.

Question 9 : Which food is rich in probiotics beneficial for immunity?

Possible answers:

  • Les chips
  • Les bonbons
  • Le yaourt
  • Le pain blanc

Explanation: Yogurt contains probiotics (good bacteria) that strengthen intestinal flora and support the immune system.

Question 10 : Which activity naturally strengthens the immune system?

Possible answers:

  • Faire de l'exercice
  • Watching television
  • Jouer aux jeux vidéo
  • Sitting for a long time

Explanation: Regular physical exercise stimulates immune cell circulation and strengthens the body's natural defenses.

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