IMMUNOLOGY UNDERSTANDING QUESTIONS Flashcards
what is a virus made up of?
viruses are made up of genetic materials in layers of protein and fat.
an infectious disease is best decribed and defined as a disease that?
is cused by pathogens. and spreades from one person to a nother
the flue is caused by the influenza virus. it enters the body through the airways when breathed in. whitch line of defence does the body need to use to fight of the flu?
first line of defence
when you cut yourself, you may notice redness an swelling, what line of defence is taking place?
second line of defence
inflemation helps the immune system by?
bringing the blood with more phagocytes to infected areas.
B-cells produce special proteans to fight special pathogens are called?
Antibodies
what is not considered a pathogen?
fruit flies
some countries seem to have eliminated and reduced the number of cases for diseases such as measles. how have they done so?
by putting in place strong immunization programes.
what is the difference between a microbe and a pathogen?
a microbe is a microscopic cell that can not be seen with the naked eye. and a pathogen is a microbe that causes diseases in the body.
what is the main role of the immune system?
the main role of the immune system is to help protect and fight the pathogens in our bodies so that we don’t get sick.
what are the main types of pathogens?
Bacteria
Fungi
Virus
what is bacteria?
bacteria is a type of pathogen with no nuclious is is a singled celled organism
what is fungi?
grows on a living host
what is a virus?
considered as non living, can have DNA or RNA
