Pathogens

1.

PATHOGENS

2.

Lesson objectives
To describe antibiotics, antiseptics,
disinfectants.

3.

Pathogens
Pathogens are harmful living things that
can cause diseases in human body.

4.

Pathogenic bacteria
Some bacteria
can cause illness.
Tuberculosis,
cholera are
bacterial
diseases.

5.

To fight with pathogenic microbes
like bacteria, fungi, viruses and
protists people use several ways.
such as antibiotics, antiseptics and disinfectants.

6.

Antibiotics are used against bacteria

7.

Antiseptics are used on living tissues
such as skin to avoid infections.

8.

Disinfectants are used on nonliving
surfaces

9.

Homework
Read p. 132-133
Answer- to literacy questions on p 133
New words