New Zealand Association of Science Educators

Example Unit Standard

Unit 10: Biotechnology

Specific Learning Outcomes,

Candidates should be able to:

Define biotechnology as the use of living things or their products to improve quality of life.

Microbes

  • define microbes as microscopic living organisms.
  • classify microbes as fungi, bacteria or viruses.
  • recognise the basic structure of fungi, bacteria and viruses.
  • understand lab safety rules for culturing microbes.
  • culture samples and identify groups as being bacteria or fungi.

Working Microbes

  • recognise that microbes can be useful.
  • investigate fermentation in yeast and it's importance in baking, brewing and/or winemaking.
  • describe some of the roles of bacteria in biotech.

Enzymes

  • describe the role that enzymes play in controlling biological reactions in living organisms.
  • investigate how temperature and pH affect enzyme activity.
  • outline some uses of enzymes in biotech.

Genetic Engineering

  • define genetic engineering as finding (identifying) and altering genes in living organisms including transferring genes between species.
  • revise the role of DNA and genes in inheritance.
  • demonstrate knowledge of some applications of genetic engineering, eg gene splicing, cloning, DNA finger printing, genetically mod)fied food.

Suggested Activities:

  • Brainstorm examples of biotech.
  • Look at photographs, microscope slides or video.
  • Make a poster, collage or diagram.
  • Design safety poster.
  • Design and/or set up an experiment involving collecting samples from common objects or places (NB safety).
  • Experiment to compare conditions needed for growth of microbes on agar plates.
  • Graphing exercise on bacterial populations.
  • Brainstorm uses.
  • Experiment or demo of action of yeast on sugar to produce carbon dioxide.
    Make bread and/or ginger beer.
    Research baking, brewing or winemaking processes. Make a poster.
    Make yoghurt and/or cheese.
    Draw a flowchart of cheese making.
    Visit cheese making company.
  • Starch and amylase or egg white and pepsin experiment.
    Hydrogen peroxide and peroxidise experiment.
    Make soft centred chocolates.
    Biological washing power experiments.
    Design advert/box for biological washing powder.
  • Collect and discuss recent newspaper articles.
  • Timelines of important milestones in genetic engineering.
  • Watch a video.
  • Debate.
  • Group research.

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