Immunity

What cell snipes virally or cancer infected cell causing water and ions to rush in and make the cell burst?

• Sniper Cells
• Natural Killer Cells
• Rifle Cells
• Bandit Cells

After an initial infection, B-cells recognize the measles virus. How is this helpful in human immune response? 

• The B-cells use this recognition to defend the body against other pathogens, such as bacteria.
•  The B-cells more quickly recognize and respond to any other virus that invades the body.
• The B-cells produce antibodies more quickly if the measles virus is encountered again.
• The B-cells transfer this recognition to T-cells, which will then devour the viruses.

The body's first line of defense against pathogens is

• barriers.
• inflammatory response.
• immune system.
• lymphatic system.

Weakened microbes that stimulate the immune system to produce antibodies used to fight future invasions by the same microbe. Example: chicken pox, measles, small pox

• Vaccine

• Disease

• Immunity

Compounds that block the growth and reproduction of bacteria.

• AIDS

• HIV

• Antibiotics

A condition in which a person's immune system is overly sensitive to environmental substances that are normally harmless.

• Allergy

• Antigen

• Bacteria

• Virus

A protein, produced by the immune system that either attacks invading pathogens or marks them for killing.

• Antibodies

• Microbe

• AIDS

• Allergy

A Substance made of weakened, killed, or partial pathogens are designed to protect the body from future invasions of that pathogen.

• Vaccine

• Virus

• Disease

• Microbe

Which is an example of passive immunity?

• people being vaccinated against disease
• people taking vitamins to boost their immune response
• people receiving antibodies from their mothers before birth
• people producing antibodies against organisms that cause diseases they have had previosuly

A secondary immune response will be faster when...

• The individual has encountered the pathogen already
• The individual's macrophages are on high alert
• The individual has encountered the pathogen and has memory B cells circulating
• All of the above