Immune System

What is the main function of the immune system?

• To produce hormones

• To break down food

• To protect the body from pathogens

• To store energy

Which of the following is part of the body’s innate immunity?

• B cells

• Skin

• Antibodies

• T cells

What type of immune cells are responsible for producing antibodies?

• • Phagocytes

• T cells

• B cells

• Lymph nodes

Which of the following is a key characteristic of adaptive immunity?

• It acts immediately

• It provides a memory of pathogens

• It includes the skin and mucous membranes

• It is non-specific

Where are blood cells, including immune cells, produced?

• Spleen

• Bone marrow

• Lymph nodes

• Thymus

What is the role of T cells in the immune response?

• They produce antibodies

• They destroy infected cells directly

• They filter harmful substances

• They engulf pathogens

Which component of the immune system filters blood and helps fight infections?

• Bone marrow

• Lymph nodes

• Spleen

• Antibodies

What does an antibody specifically bind to?

• Phagocytes

• Pathogens

• Antigens

• Lymph

Which of the following is part of a healthy immune system practice?

• Sleeping less than 5 hours

• Regular exercise

• Skipping meals

• Avoiding hygiene practices

What happens when memory cells are activated during a second infection?

• The immune response is slower

• The pathogen is ignored

• The immune response is faster and stronger

• No antibodies are produced