Chapter 1: Cell Biology
Lesson 13: Living without oxygen Lesson overview AQA Specification reference AQA 4.4.2.1
Learning objectives • Describe the process of anaerobic respiration. • Explain when anaerobic processes occur. • Compare the processes of aerobic and anaerobic respiration.
Learning outcomes • Describe the situations when aerobic and anaerobic respiration take place. [O1] • Write a word equation for anaerobic respiration. [O2] • Compare and contrast aerobic and anaerobic respiration. [O3]
Skills development • WS 2.2 Plan experiments or devise procedures to make observations, produce or characterise a substance, test hypotheses, check data or explore phenomena. • WS 3.7 Be objective, evaluate data in terms of accuracy, precision, repeatability and reproducibility and identify potential sources of random and systematic error. • WS 4.1 Use scientific vocabulary, terminology and definitions. Resources needed Worksheet 1.13 Digital resources Presentation 1.13 Key vocabulary anaerobic respiration, fermentation
Teaching and learning Engage • Show students the PowerPoint slide showing alcohol, bread and yeast. Ask students to make a connection between the images. Take feedback and discuss their ideas. [O1]
Challenge and develop • Show students some readymade dough that has risen. Discuss what has happened to the dough and what has been added to the flour in the process. Use the PowerPoint slide in your discussion. [O1] • Also show students a video from www.science.howstuffworks.com (search terms: ‘episode 7: bread making’). [O1] • Now show students the fermentation process of making alcohol using yeast. [O1] www.science.howstuffworks.com (search terms: ‘episode 5: fermentation’). • Show the students the video ‘Use of microbes in the food and drink industry’: www.bbc.co.uk (search terms: ‘microbes’ and ‘food and drink’). • Ask students to plan their own investigation into anaerobic fermentation by investigating conditions for making their own dough. See Worksheet 1.13 for details. [O1]
Explain • Ask students to use the worksheet (task 2) and draw a cartoon strip to explain the process of anaerobic respiration in fermentation. They should explain the process using a word equation. [O1, O2]
AQA GCSE Biology: Trilogy: Teacher Pack
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