Immune System Introduction

Match the following terms with their explanations.

• important cells in our immune system

• antigens

• substance that protects against disease

• pathogen

• any living organism that can cause disease

• white blood cells

• chemical markers on pathogens

• vaccine

• made by white blood cells to fight pathogens

• antibody

Disease causing organisms such as viruses or bacteria.

• Pathogens
• Allergens
• Antibodies
• Toxins

a foreign protein on the surface of a cell that stimulates an immune response (reaction).

• enzyme
• antibody
• antigen
• hormone

proteins that respond to a specific antigen/pathogen and destroy it.

• antibodies
• vitamins
• lipids
• carbohydrates

______ create antibodies

• White blood cells

• Pathogens

• Hormones

• Viruses

Find the White Blood Cell

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

Find the Antibody

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

NGSS.MS-LS1-3

Find the pathogen

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

The diagram shows a pathogen, what is the arrow pointing to on the surface of the pathogen?

• a molecule called an antigen

• a molecule called an antibody

The immune system produces what in response to the vaccine?

• antigens
• antibiotics
• antibodies
• the disease