infection and response Flashcards
 what are some causes of noncommunicable diseases
Lack of exercise, alcohol, smoking, UV radiation, high intake of sugars, and fats
what is a benign tumour?
It stays in one part of the body and tends to be contained in a membrane, so usually doesn’t spread
what is a malignant tumour?
It is not contained, so it can travel in the blood to other tissues
How did tumours form?
Cells multiply excessively
State four causes of cancer
Genetic
Mutations
radiation
Infection
what are the two ways of treating cancer?
Radiotherapy and chemotherapy
What is a pathogen?
Microorganisms that enter the body and caused disease
How do bacteria make you feel ill?
They produce toxins that damage your cells and tissues
How do viruses make you feel ill?
They live inside yourselves and replicate themselves. The cell will burst releasing the viruses.
How can pathogens be spread?
Water air and direct contact
name three diseases caused by fungi
Athletes foot, ringworm, rose blackspot
name four diseases caused by viruses or fungi
Measles, HIV, tobacco mosaic virus, rose blackspot
What is a vector?
An organism that spreads disease by carrying pathogens between people
how can we prevent disease?
Hygiene, destroying, vectors, isolating, infected, individuals, vaccination
which features stop pathogens getting in the body
Skin, hair, mucus, trachea, bronchi, Cilia, stomach acid