microbes
what is the differences between multicellular and unicellular organisims?
unicellular organisims are made up out of one cell that does all the functions. Multicellular organisims use many different cells to function.
how can microbes or microorganisims be seen
microscopes
three main types of microbes
batcteria, viruses , fungi
are viruses living
No they do not carry out the seven life processes
What does MRS GREN stand for
Movement
Reproduction
Sensitivity
Growth
Respiration
Excretion
Nuitrition
Movement
being able to move all or a part of itself
reporduction
producing more living things like itself
sensitivity
sesning and reacting to things around it
growth
increasing in size
respiration
using chemical reactions to release energy
excretion
getting rid of waste materials it makes
nuitrition
needing food
what do microbes need to grow
food, oxygen,water, space/time and warmth
why do microbes need food to grow
it provides nutrients to carry out the life processes
why do microbes need water to grow
It helps keep the cells from drying out
why do microbes need oxygen to grow
They can grow without oxygen but more slowly and most microbes grow better with oxygen
why do microbes need warmth to grow
Increases speed of enzymes
how can microbes be spread
through the air, water , touch , food , animals and sex
microbe that causes colds and flu
virus
microbe that causes food poisoning
bacteria
microbe that causes cholera
bacteria
microbe that causes athelete's foot
Fungus
syptoms of cold and flu
sore throat, runny nose, fever
syptoms of cholera
vommitting and diarrhoea
syptoms of food poisoning
vommiting and diarrhoea
syptoms of atheletes foot
sore cracked skin between the toes
how colds and flu are spread
air
how food poising is spread
food
how cholera is spread
water
how atheltes food it spread
touch
how can we stop food poisining from spreading
dry, freeze or refrigerate foods and pasteurizing milk
how can we stop cholera from spreading
adding chlorine to water to kill bacteria
how can we stop athletes foot from spreading
use disinfectants, antispetics and soaps
how can we stop disease from spreading in general
immunise people with vaccines and making sure that sewage is treated and disposed of porperly
how does paesturazation help
kills harmful bacteria
how does disinfectant help
kills bacteria in toilets and around buildings
how does soaps and antiseptics help
kills bacteria on our bodies
how does chlorine in drinking water help
kills bacteria in water
how does salting, canning, piclking in vingear help
kills microbes in food
how does drying, freezing, refrigating help
stops or slows the growth of microbes in food
how does cooking foods well help
kills of bacteria
what does paesturization prevent
turberculosis
what do disinfectants prevent
upset stomachs and legionnares disease
what do soaps and antiseptics prevent
skin disease anf upset stomachs
what does chlorine in drinking water prevent
cholera, typhoid, upset stomachs
what do salting, cannning and pickling in vingear prevent
upset stomach
what do drying, freezing and refrigerating prevent
upset stomach
what does cooking foods well prevent
food posining
anerobic respiraration equation
gluecose to ethanol + carbon dioxide
aerobic respiration equation
gluecose + oxygen to carbon dioxide + water
bacteria
bacteria uses anaerobic respirartion with the equation gluecose to lactic acid and makes yougurt and cheese
fungi
fungi uses both anaerobic and aerobic respiration
anaerobic equation- gluecose to ethanol + carbon dioxide
aerobic equation - gluecose + oxygen to carbon dioxide + water. anerobic respiration is used to make beer, wine and bread and aerobic is used for bread