I WONDER - What Does The Immune System Do? Me Pregunto - Qué Hace El Sistema Inmunológico?

The video tutorial explains the immune system's role in protecting the body from harmful substances known as antigens and pathogens, which include viruses, parasites, and bacteria. It describes how these pathogens can make us sick and details the two main functions of the immune system: preventing diseases from entering the body and attacking diseases that have already entered.

What are the substances called that the immune system protects us from?

• Antigens and pathogens

• Vitamins and minerals

• Antibodies and enzymes

• Hormones and proteins

Which of the following is NOT considered a pathogen?

• Virus

• Parasite

• Bacteria

• Antigen

How do pathogens affect our health?

• They strengthen our immune system

• They make us sick by entering our body

• They provide essential nutrients

• They help in digestion

What is one of the primary functions of the immune system?

• To regulate body temperature

• To prevent diseases from entering the body

• To aid in digestion

• To produce energy

What does the immune system do when diseases have already entered the body?

• It ignores them

• It uses them for energy

• It attacks them

• It stores them for later