The Immune System Quiz

What is the primary function of the immune system?

• To protect the body from germs and harmful invaders

• To circulate blood

• To digest food

• To help with breathing

What acts as a physical barrier to keep pathogens out?

• Heart

• Skin

• Kidneys

• Liver

What is the role of mucus in the immune system?

• To digest food

• To trap germs before they enter the body

• To produce antibodies

• To circulate blood

How does a fever help the immune system?

• By slowing down the growth of pathogens

• By increasing appetite

• By cooling the body

• By making you sleepy

How do vaccines work?

• They increase body temperature

• They make you sick to build immunity

• They contain a harmless part of a germ to train the immune system

• They replace white blood cells

What is one way to keep your immune system strong?

• Eating healthy foods

• Watching TV all day

• Skipping meals

• Sleeping less

What is the first line of defense in the immune system?

• White blood cells

• Vaccines

• Antibodies

• Physical and chemical barriers

What does the immune system protect you from?

• Bacteria, viruses, fungi, and other organisms

• Only fungi

• Only bacteria

• Only viruses

What is the benefit of a healthy lifestyle for the immune system?

• It makes you taller

• It makes you run faster

• It keeps your body ready to fight off sickness

• It improves your eyesight

What is the second line of defense if germs get past your skin?

• Vaccines

• Inflammation and fever

• Antibodies

• Physical barriers