Immune System

Front

What is the relationship among possible environmental influences, the p53 gene, and cancer?

Back

Environmental influences can lead to mutations in the p53 gene, which can cause certain cancers.

Front

How does B-cell recognition of the measles virus help in human immune response?

Back

The B-cells produce antibodies more quickly if the measles virus is encountered again.

Front

What is the body's first line of defense against infection by foreign organisms?

Back

the skin

Front

What is immunity?

Back

The body's ability to produce cells that inactivate foreign cells or substances.

Front

What is the term for a strong response to a harmless antigen in the environment?

Back

an allergy

Front

Phagocytes perform which function in the human body?

Back

They engulf and destroy bacteria.

Front

When a person is vaccinated, what are they injected with?

Back

weakened viruses or antigens from the virus

Front

An activity that occurs in the human body helps to do which of the following? Options: provide protection against pathogens, produce antibiotics to control disease, eliminate harmful gene alterations, regulate production of ATP by the cell

Back

provide protection against pathogens

Front

What is the best way to proceed in dealing with the public health problem of antibiotic-resistant bacteria?

Back

Antibiotics should only be prescribed to people with bacterial infections.

Front

How do human diseases caused by bacteria and diseases caused by viruses react to antibiotics?

Back

Bacterial diseases respond to antibiotics; viral diseases do not.