Microorganisms (note)
description
Transcript of Microorganisms (note)
Theme : Investigating Living Things
Unit 1 : Microorganisms
Definition:
Microorganisms is an organisms that can only
seen through a microscope.
Virus Protozoa
bacteria fungi
Microorganisms are living things.
They undergo life process such as breathe ,
grow and move.
Yeast is a fungus. It used in making bread.
It is able rise after we mix it with flour and
water and let the flour rest a while.
We can see the size of dough getting bigger.
The effect of yeast on the dough shows that
yeast breathes.
Flour +
water
+yeast
Dough rises
(yeast
breathe)
When water is sprinkled on a slice of bread
and kept in a plastic bag for a week.
We can see black spot on the bread.
The black spot are fungi
This activity show that microorganisms
grows.
Fungus
Microorganisms moves.
We can see the movement of microorganisms
through a microscope.
Amoeba move to top
Making bread
Making tapai
Making tempe
Making fertilizer
Illness
Food poisoning
Food turns bad
Tooth decay
a. Stomach upset
f. conjunctivitis
b. Tooth decay
g. scabies
c. measels
h. AIDS
d. flu
i. mumps
e. cough
Diseases caused by
microorganisms :
Diseases caused by microorganisms
can spread from one person to
another.
Example of diseases that can
spread:
cough, flu, measles, chicken pox
1. Through food and drink
2. Sneezing or coughing
3. Direct contact
4. Carried by mosquitoes or flies
5. Spread through the air
a. Washing hands before handling food
b. Covering the mouth and nose when
coughing or sneezing
c. Washing hands after using the toilets
d. By putting patients who have chicken
pox, conjunctivities or mump in
quarantine.
e. By covering wounds
By :
LEE CHOUI YEE
UPSI ELA12
(A121PJJ)