Immune System

True/False: Your body cannot make antibodies for pathogens that you have never been in contact with.

• True, because your body needs to encounter the pathogen at least once in order to create the antibodies.

• False, because you can make antibodies via immunizations given by a doctor.

Tags

NGSS.HS-LS1-3

NGSS.HS-LS3-2

The immune system works with all of the following system EXCEPT...

• the integumentary

• the lymphatic

• the muscular

• the cardiovascular

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.

What happens after the second time you are exposed to a pathogen?

• The body will not be able to fight off the pathogen quickly, because it knows how to get into the body easier.

• The body's immune system will react the same was as it did during the first exposure.

• The body can only be exposed to a pathogen a second time if you do not have a vaccine.

• The body will know how to fight off the pathogen quickly, because memory cells have been created after the first encounter.

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.

Cells that ingest pathogens are

• plasma cells
• phagocytic cells
• helper T cells
• antibodies

Tags

NGSS.MS-LS1-2

The ______________ system returns interstitial fluid to the blood stream.

• ureters
• spleen
• thymus
• lymphatic

B cells mature in the

• thymus
• intestine
• bone marrow
• heart

What do scientists call bacteria and viruses that can make people sick?  

• diseases
• vaccines
• antibodies
• pathogens