Immune System Cells and Their Functions

What is the main function of macrophages in the immune system?

• Destroy infected cells with cytotoxin

• Clean up viruses and call the T-cells

• Make up most of your body

• Call for backup

Which type of cell kills viruses and calls more neutrophils?

• B-cells

• Neutrophils

• Helper T-cells

• Epithelial cells

B-cells clean up viruses and alert other _________?

• B-cells

• neurons

• red blood cells

• muscle cells

What do Killer T-cells do in the immune system?

• Make up most of your body

• Destroy infected cells with cytotoxin

• Call for backup

• Clean up viruses and alert other B-cells

Helper T-cells ________ for backup.

• call

• run

• hide

• wait

Which type of cell makes up most of your body?

• Macrophages

• Neutrophils

• Epithelial cells

• Killer T-cells

What is the main job of the immune system as described in the passage?

• To attack and destroy any unwanted bacteria and viruses in the body.

• To help digest food in the stomach.

• To produce energy for the body.

• To control the movement of muscles.

What symptom does the story begin with?

• Headache

• Sore throat that is red and hurts when you swallow

• Stomach ache

• Fever

What started the attack in the body?

• Bacteria

• Virus

• Fungus

• Allergy

It is up to some key defense systems to battle and defeat these forces. What are these defense systems a part of?

• Digestive system

• Immune system

• Nervous system

• Respiratory system