Science Quiz: On the immune system

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A number of organs and cells make up your body’s immune system. What are the small, bean-shaped structures that act as filters, trapping viruses, bacteria and other harmful substances, found throughout your body?

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White blood cells form a crucial part of the body’s immune system. What is known as the ‘factory’ of WBCs, the place in the body where most WBCs are produced?

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There are two major types of immunity. One is innate, present from birth and the first line of defence against intruders. The other kind is developed over your lifetime, in response to pathogens. What is this called?

Answer : Acquired, adaptive or specific immunity

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4 / 6 |
True or False: An allergy is your immune system’s under-reaction to a substance that is usually harmless

Answer : False. The immune system overreacts, causing allergic symptoms.

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The body’s extreme reaction to an infection, which can be life-threatening, when the immune system triggers widespread inflammation is known as ____________.

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In the picture above, name the organ that is in the chest, between the lungs that is an important part of the immune system.