microbes and disease Flashcards
what are microbes?
they are very tiny living things that can cause disease
what is the size of a bacteria?
1/1000mm
what is the structure of bacteria?
they are single celled organisms which don’t have a nucleus
do they reproduce quickly?
yes they reproduce very quickly
what are three microbes?
viruses, fungi, bacteria
what is the size of a virus?
1/1000000mm
what is the shape of the virus?
they are regular and geometric shapes
how do viruses reproduce?
they can only reproduce inside other living things
what is the size of fungi?
2 to 10 micro meters
what is fungi’s shape?
trick question, they come in different types of shapes
what are examples of viruses?
flu and hiv
what are examples of fungi
penicillium and yeast
what are the uses of fungi?
to make food like Quorn
what does yeast do?
it carries out respiration of the microbe
what is the aerobic respiration of yeast used for?
it makes alcohol and ethanol
what is the anaerobic respiration used for?
to make beer and wine
name how microbes can get in the body
eyes, nose, ears, skin, cuts and genitals
how can microbes be spread?
air, water, animals, contact( hand, walking on wet floors and sexual contact)
can hiv spread from the mother to the child while being developed
yes
can a child pick up microbes by the mother by breast feeding?
yes
how do we avoid it?
good hygiene, antibiotics and vaccines
why does our body produce white blood cells?
to defend the body from microbes
how do white blood cells defend the body
by engulfing the microbes
what are antibiotics
chemicals that kill bacteria inside the body
what are antibodies
chemicals produced by white blood cells to fight microbes
what is bacteria?
single celled organisms
what is immunity
resistance to infections from microbes
what is transmission
the spread of disease from person to person
