Immunity Defence Quiz

Which of the following is a physical barrier in the first line of defence?

• Antibodies

• Skin

• White blood cells

• Enzymes

What is the primary function of mucous membranes in the immune system?

• To produce antibodies

• To trap and remove pathogens

• To destroy infected cells

• To produce white blood cells

Which of the following is a chemical barrier in the first line of defence?

• Skin

• Mucous membranes

• Stomach acid

• Phagocytes

What is the main purpose of inflammation in the immune response?

• To produce antibodies

• To increase blood flow and attract immune cells to the site of infection

• To destroy infected cells

• To produce white blood cells

Which of the following is an example of chemotaxis?

• The movement of white blood cells towards the site of infection

• The production of antibodies

• The destruction of pathogens by phagocytes

• The release of histamines

What substance in sweat acts as a chemical barrier?

• Antibodies

• Lysozyme

• Histamine

• Interferon

Which of the following is a characteristic of the innate immune response?

• It is specific to particular pathogens

• It has memory and improves over time

• It is the first line of defence and acts quickly

• It involves the production of antibodies

How do mucous membranes contribute to the immune system?

• By producing antibodies

• By trapping pathogens and facilitating their removal

• By destroying infected cells

• By producing white blood cells

What is the role of phagocytes in the immune system?

• To produce antibodies

• To engulf and destroy pathogens

• To produce histamines

• To produce white blood cells

Which of the following is NOT part of the innate immune response?

• Phagocytosis

• Inflammation

• Antibody production

• Chemotaxis