Immune system and pathogens

What is the function of antibodies within the immune system?

• Antibodies kill off any antigen that enters the body.

• Antibodies are only made when you are given a vaccination for specific antigens.

• Antibodies bind to specific antigens to flag for destruction.

• Antibodies are part of an external defense mechanism.

Which of the following statements are TRUE about vaccinations?

• Allow B cells to make antibodies for any type of antigen the body comes in contact with.

• Triggers the body to make memory cells for specific pathogens.

• They are substances prepared from killed or weakened pathogens.

• Always allows the body to resist an infectious disease any time it comes into contact with it.

All of the following are examples of white blood cells EXCEPT

• Killer T cells

• Supporter T cells

• Macrophage

• Vaccine

• B Cell

How do T cells differ from B cells?

• T cells fight pathogens by killing pathogens directly, while B cells fight pathogens by making antibodies.

• T cells only make memory cells, and B cells only make antigens

• T cells fight pathogens by making antibodies, while B cells fight pathogens by killing pathogens directly.

• T cells can only fight off pathogens the body has encountered once, and B cells can fight off any pathogen the body comes across.

Tags

NGSS.MS-LS1-3

Which of the following statements is TRUE about someone's immune system that has allergies?

• Body cells are dividing at an uncontrolled rate.

• The body is reacting to foreign antigens that are not dangerous to most people.

• T cells and B cells in the body cannot be activated.

• The body is mistaking its own cells for foreign antigens.

Pathogens are...

• Foreign substances that attack the body.

• White blood cells that attack foreign substances that enter the body.

• A type of internal defense mechanism in the immune system.

• Proteins that cause disease.

What are the 4 types of pathogens that could cause illness?

• animals, bacteria, fungi and plants
• bacteria, fungi, nucleus, protist
• bacteria, fungi, viruses, protist
• bacteria, plants, fungi, protist

What is the main purpose of the immune system?

• support the body through bones and muscles
• get rid of waste from the body
• protect the body from pathogens
• move blood through the body

Tags

NGSS.MS-LS1-3

Which would most likely prevent a cold virus from spreading in a classroom?

• tissue at a teacher's desk
• students wash hands regularly with soap 
• students shake hands regularly with each other
• students wipe desks with dry paper towels

A microbe that can cause harm is known as a

• Pathogen

• Pathogon

• Virus

• Bacteria