Biotechnology Day

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Biotechnology Day!

• By Maddy Holmes, Sarah Camlica and Emma Roney.

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General Information

• Biology the study of living things
• Technology the tool for evolution
• Biotechnology using living things (eg plants,
  animals or bacteria) to create products or to do
  tasks for humans (eg food, medicine or
  cosmetics).

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Cells

• All living things are made out of cells. There
  are different types, but all living things have
  cells.
• Inside the cell is a Nucleus. Inside the Nucleus
  you can find DNA (Deoxyribonucleic Acid). DNA
  makes up genes. Genes determinate your
  characteristics.

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DNA Extraction

• DNA is in all living things, in our case we were
  looking at the DNA of fruit. To extract DNA we
  had to squash strawberries and then make an
  extraction buffer that was made of
• Salt
• Water
• Detergent
• Then we mixed the mashed strawberry and the
  extraction buffer then we poured it into a test
  tube and poured in a little bit of methylated
  spirits. We then we got a sate stick and pulled
  out the DNA from the middle of the tube.

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DNA Models

• DNA is a spiralling ladder, to make this ladder
  we used
• Gummy Bears
• Marshmallows
• Toothpicks
• Wire
• We lined up pink and white marshmallows onto the
  wire and lined gummy bears onto the toothpicks
  and stuck it in the marshmallows. Then we had
  something that was SUPPOSED to look like this.

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Yeast

• Yeast is a bacteria and can live in dry and wet
  conditions, except in wet conditions, yeast is
  activated to produce acid - just like vinegar and
  baking soda.
• We actually experimented mixing yeast with water,
  pouring it in a bottle and putting a balloon over
  it. We also had to make dough with yeast, water
  and flour and by the next morning we noticed that
  the dough had expanded. This was because acid was
  produced and bubbles were made, so along with
  bubbles the dough expanded.

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Thanks To

• Bob for coming to our school and teaching us.
• All the teachers for putting Bio-Technology day
  on for us.
• Miss Roulent DNA Models
• Ms. Taylor DNA Extraction
• Mrs. Tsalikas General Knowlage
• Ms. Tang Cells