Biology-9 Pathogens and Immunity

Front

What do B cells produce?

Back

Antibodies

Front

Cells that can swallow/ingest pathogens are ____.

Back

Phagocytes

Front

What do scientists call the microorganisms that can make people sick?

Back

Pathogens

Front

What are the first line of defense physical and chemical barriers?

Back

Skin, hair, mucus, cilia, stomach acid.

Front

Which organ is part of the immune system?

Back

Spleen

Front

What is the role of antibodies in the immune response?

Back

Antibodies bind to pathogens to neutralize them or mark them for destruction.

Front

What are T cells responsible for in the immune system?

Back

T cells help regulate the immune response and directly attack infected cells.

Front

What is the function of macrophages?

Back

Macrophages engulf and digest pathogens and dead cells.

Front

What is the difference between active and passive immunity?

Back

Active immunity is developed through exposure to pathogens, while passive immunity is acquired through antibodies from another source.

Front

What is a vaccine?

Back

A vaccine is a substance that stimulates the immune system to produce immunity to a specific disease.