1. Presented by Wong Moi Chan@2011

2. Microorganism
 Micro means tiny.
 Organisms means living things.
 There are many types of microorganisms.
 Types of microorgaanism can be
categoried as bacteria, fungi, protozoa and
virus.

3. Types of microorganism
Bacteria Fungi Protozoa Virus

4.  We cannot see some of them with our
naked eyes, because they are so tiny.
 So we need to use microscope.

5. Bacteria
 Bacteria are a large group of unicellular
microorganisms.
 Have a wide range of shapes, ranging from
spheres to rods and spirals.
 Most kind of bacteria are harmless and
many even helpful.
 Its causes diseases such as diahrea, sore
throat.

7. Fungi
 Fungus is a eukaryotic organism that is a
member of the kingdom Fungi .
 Some of them can look with naked eyes,
but some of them can not.
 Example yeast is one of the useful
microorganism that we need to use
microscope to look them.
 Yeast can help people to produce delicious
bread and cake.

9. PROTOZOA
 Protozoa are microorganisms classified as
unicellular eukaryotes.
 Can be harmless and harmful.
 Malaria is one diseases cause by a kind of
protozoa.

11. Virus
• A virus is a microscopic infectious
agent that can only reproduce inside a
host cell.
• Can infect human, plants and animal.
• Virus are responsible for many serious
diseases and sometime deadly such
as AIDS.

13. USAGE OF
MICORORGANISM
 Making curd and Bread
 Medicinal use of Microorganism
 Increasing Soil Fertility
 Cleaning the Environment
 Vaccine
 Production of alcohol and wine

14. THANK
YOU