Immune System Biology

skin

• 2nd line of defense

• 1st line of defense

• 3rd line of defense

white blood cells

• 2nd line of defense

• 3rd line of defense

• 1st line of defense

antibodies

• 1st line of defense

• 2nd line of defense

• 3rd line of defense

1st line of defense

• specific immunity

• non-specific immunity

Special proteins produced by the body to attack foreign invaders.

• antibodies

• antigen

Match the following terms with their explanations.

• chemical markers on pathogens

• antigens

• any living organism that can cause disease

• pathogen

• made by white blood cells to fight pathogens

• vaccine

• important cells in our immune system

• white blood cells

• substance that protects against disease

• antibody

Any substance that causes an allergy is a(n):

• Allergen

• Irritant

• Virus

• Carcinogen

Match the following terms that mean the same things.

• chemical marker

• engulf

• Y-shaped protein

• pathogen

• medicine

• antibiotic

• foreign invader

• antigen

• eat

• antibody

1. The immune system ​ (a)   , isolates and ​ (b)   ​ (c)   substances.

• detects

• destroys

• harmful

• helpful

• nurtures

Which of the following is not a part of the immune response?

• Making pathogens

• white blood cells attack

• create antibodies

• recognize and attack an antigen the next time it inters the body.