1C8 Microbiology and Biotechnology

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1C8Microbiology and Biotechnology
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Microbiology

• OB65
• investigate the presence of micro-organisms in
  air and soil
• OB67
• list three common illnesses caused by viruses and
  three caused by bacteria

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OB65 investigate the presence of micro-organisms
in air and soil

• An organism in a single cell
• Examples of micro-organisms
• Bacteria e.g. E.coli, Samonella
• Virus - e.g. flu virus, HIV

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OB65 investigate the presence of micro-organisms
in air and soil
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OB65 investigate the presence of micro-organisms
in air and soil
Each cell divides to give two/four/eight..
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OB65 investigate the presence of micro-organisms
in air and soil
How can I see micro-organisms?
If micro-organisms are given the right
conditions, they will grow in numbers large
enough to let us see a group of them
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OB65 investigate the presence of micro-organisms
in air and soil
What conditions do micro-organisms need in order
to multiply?

• Micro-organisms need
• Food
• Correct temperature
• Suitable medium on which to grow

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OB65 investigate the presence of micro-organisms
in air and soil
What food do micro-organisms like?
Any source of carbohydrate and protein
e.g Bovril, chicken stock, or milk
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OB65 investigate the presence of micro-organisms
in air and soil
What is a suitable temperature?
Bacteria grow quickly between 300C and 400C
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OB65 investigate the presence of micro-organisms
in air and soil
What is a suitable medium?
Micro-organisms can be easily seen growing in
colonies if a clear medium is used e.g. agar
jelly gelatin
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OB65 investigate the presence of microorganisms
in air and soil
How do I recognise micro-organisms?
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OB65 investigate the presence of micro-organisms
in air and soil

• prepare and plan
• procedure, safety, observation
• analysis

Click here to download a planning mind map
Click here to download a planning worksheet
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OB65 investigate the presence of micro-organisms
in air and soil
Different soils contain different bacteria
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OB65 investigate the presence of micro-organisms
in air and soil
How does a virus spread from person to person
through the air?
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OB67 list three common illnesses caused by
viruses and three caused by bacteria
Name some common illnesses.
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OB67 list three common illnesses caused by
viruses and three caused by bacteria
click here to check your answers
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OB67 list three common illnesses caused by
viruses and three caused by bacteria
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OB67 list three common illnesses caused by
viruses and three caused by bacteria
YOUR TASK find out which micro-organism causes
the following
pneumonia
ulcers
spots
warts
verucca
rabies
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ANTIBIOTICSthese are chemical made by some
micro-organisms to kill bacteria. Humans have
learned to use them as a medicine. With that in
mind, what is your answer to each of the
following?

• Why are we advised to eat natural yogurt when we
  are taking antibiotics?
• Why is it useless to take antibiotics to try to
  cure a cold or flu?
• Why is it important that we finish a course of
  antibiotics fully?

Click here to open a written worksheet
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BIRD FLU VIRUSan epidemic of flu began
spreading through the worlds bird population in
2005. What is your answer to the following?

• Why is it that the larger the flock of birds, the
  more quickly the flu spreads among them?Why does
  it spread more quickly in indoor flocks than in
  outdoor flocks?Why are all members of an
  infected flock slaughtered?

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Do you know?
During World War One, what caused the majority of
deaths?
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Biotechnology

• OB66
• State two uses of biotechnology in industry and
  two uses of biotechnology in medicine

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OB66 state two uses of biotechnology in industry
and two uses of biotechnology in medicine
Biotechnology is the use of living things to
make products
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OB66 state two uses of biotechnology in industry
and two uses of biotechnology in medicine
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OB66 state two uses of biotechnology in industry
and two uses of biotechnology in medicine
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1C8Microbiology and Biotechnology