What are we
learning today?
Any ideas?
http://www.youtube.com/w
atch?v=--ykTqoQnqI
Learning objective:
L5: What are the different
types of micro organism?
L6: What are the differences
between bacteria, viruses
and fungi?
L7: What substances can
kill/inhibit growth of
microorganism?
Science skill: To carry out the
practical effectively in pairs
True or False?
1. Going out in the cold can infect you with a cold?
F
2. A red face is a sign of good health?
F
3. Looking at your fingernails can give clues to your health?
T
4. Smoking is good for your health?
F
5. You cannot catch any diseases from kissing?
F
6. There are no fungal diseases that affect humans?
F
7. Your dog can pass a number of diseases on to you?
T
Complete the sentences
There are three types of microbe:
_ _ _ _ _ _ _ _, __ _ _ _ and __ _ _ _ _.
They have something in common: they are all very very
_ _ _ _.
All three can cause _ _ _ _ _ _ _.
bacteria
small
viruses
Diseases
fungi
• Bacteria are usually smaller
than fungi.
• If there is just one of them,
we call it a bacterium.
• Bacteria have many
different shapes.
•
Some have 'tails' (called
flagella) that let them swim.
Strand of genes
(RNA)instead of DNA
inside nucleus
• Viruses are the smallest type
of microbe.
• As a virus can only
reproduce inside a cell,
some people are not
convinced that viruses are
really living things
Protein coat
Individual fungi don’t move around.
But they can spread by making tiny spores that are carried by wind
and rain and grow into new fungus cells when they land.
Fungi come in a variety of shapes and sizes and different types.
Yeast cells look round or oval under a microscope. They're bigger
than bacteria, but still too small for your eyes to see them individually.
Difference between fungi,
bacteria and virus
Feature
Fungi
Bacteria
Virus
Cell
membrane
Cell wall
Cell nucleus
Hard
Soft
Protein
coat
Circle
RNA
Strand
Antiseptics
From the images and keywords below try writing
the definition of antiseptic.
Antiseptics
Antiseptics
From the images and keywords below try writing
the definition of antiseptic.
antiseptics.
Safety First:

Wear safety goggles

Stand up

Tuck your chair & bags under
your desk

Tie back long hair

Do not open agar or swallow

Working in pairs
1) Where do you draw the lines to separate the
petri dish?
•
Top
•
Bottom
2)Where do you write your names?
•
Top
•
Bottom
•
Edge
3)Where do you write the names of the
antiseptics?
•
Top
•
Bottom
Petri
dish with
agar
and
microbe
Paper disc
Name A + Name B
Hand
wash
water
Dettol
Tears





Marker pen
Ruler
Forceps
paper disc
Sticky tape
When the bacteria have
grown in your Petri Dish
DO /NOT OPEN IT!
Take the paper disc using forceps and dip it into the antiseptics
(hand wash, dettol, tears and water)
2) Place the correct antiseptic disc onto the correct section of the
Petri dish. (repeat it 3 times)pyramids
3) Using sticky tape stick on the sides to secure the Petri dish.
1)
Prediction, control, variables
 What
are we expecting to see?
 What
variables are you controlling?
 Independent
and dependent variable?
L5:

Look at five household objects
and write down their names
L6:

Define the following keywords:
-Antiseptic
-Antibiotics
-Antibodies
-Analgesic
-Antigens

Explain biogenesis (A4)
handwritten
L7:

Explain the controversial issues on
MMR Vaccine (A4) handwritten