2. What do you think the word BIOTECHNOLOGY means? BIO TECHNOLOGY Notes Use the Success Guides to write a paragraph explaining what Biotechnology is.
3. Making antibiotics Brewing beer Baking bread Notes Complete your copy of the diagram by adding the missing pictures and labels.
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5. Yeast Using both class text books: - Draw a diagram of yeast cells. - Describe the characteristics of yeast Notes
6. Respiration Recap Who can remember the respiration equation? Glucose + Oxygen H 2 0 + C0 2 + Energy
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8. Thermometer Vacuum Flask Layer of Oil Boiled and cooled water + yeast + glucose Bicarbonate indicator Action of Yeast Cells On Sugar In the Absence of Oxygen
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10. What could we use these products of anaerobic respiration for? Glucose Carbon dioxide Alcohol Energy no O 2 yeast + +
14. Brewing The brewing industry uses barley grains rich in starch . Starch is a large molecule however and has to be converted to simple sugars before the yeast can ferment it. Using the Success Guides, describe the process of malting (include the word equation). Notes
17. How do you think the pH will change as lactose is fermented? Bacterial Fermentation Fresh milk contains a sugar called lactose . When bacteria feed on this sugar they break it down to produce lactic acid. Lactose Lactic acid Bacteria
