Immune System

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? Choose all that apply.

• 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.

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.

Tags

NGSS.MS-LS4-4

Some examples of external defenses are...

• Skin

• Mucus

• Inflammation

• Saliva

• Sweat

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.

Which of the following is not a part of your body’s first line of defense?

• Skin

• Mucus

• Stomach Acid

• Antibodies

The body detects pathogens by their...

• Antigens
• Antibodies
• Histamines
• DNA

A nonspecific defensive response of the body to tissue injury characterized by dilation of blood vessels and swelling.

• immunity
• interferon
• immunization
• inflammation

Disease-causing microorganism, such as a bacterium or virus.

• pathogen 
• allergen
• prion 
• antigen 

what does HIV do to our immune system?

• It makes our immune system more stronger
• It attacks red blood cells 
• It attacks our brain to stop working
• It attacks our white blood cells and weakens our immune system to the point where our body cannot fight pathogens