The various types of micro-organisms in the world

types of micro-organisms

1. 2024-04-23
1
T
YPES

OF
M
ICROORGANISMS

Microorganisms are tiny celled organisms, like viruses, bacteria, fungi
and found everywhere.
There are four main types of microorganisms. They are :-
bacteria, fungi, algae and protozoans.
for example:-
1.Bacteria – lactobaccilus, E.Coli etc.
2.Algae – Chlamydomonas, Spirogyra etc.
3.Fungi – Bread mould, Penicillium, Aspergilles etc.
4.Protozoans – Amoeba, Paramaecium etc.
Viruses are also considered as microorganisms. They are different
from other microorganisms because they reproduce only in the
body of host organisms like bacteria, plants or animals.
Common ailments like cold, influenza(flu) and most coughs are
caused by viruses. Serious diseases like polio and chicken pox are
also caused by viruses.

2. 2024-04-23
2
TYPES OF MICROORGANISMS
BACTERIA ALGAE
PROTOZOA
FUNGI
Spiral bacteria Rod-shaped bacteria Chlamydomonas Spirogyra

Amoeba Paramecium

Bread Mould Penicillium Aspergillus

3. 2024-04-23
3

4. 2024-04-23
4
Some common human diseases caused by microorganisms:-


H
UMAN

DISEASE
C
AUSATIVE

MICROORGANISM
M
ODE

OF

TRANSMISSION

Chicken pox Virus Air / Contact
Polio Virus Air / Water
Measles Virus Air
Hepatitis – B Virus Water
Tuberculosis Bacteria Air
Typhoid Bacteria Water
Cholera Bacteria Water / Food
Malaria Protozoa Mosquito

Some common plant diseases caused by microorganisms :-

P
LANT

DISEASE
C
AUSATIVE

MICROORGANISM


M
ODE

OF

TRANSMISSION


Citrus canker Bacteria Air
Rust of wheat Fungi Air / Seed
Yellow mosaic of
Okra (Lady’s finger)
bhindi

Virus Water
T
HANK
Y
OU
….