Contents
Part 2 of 3
Yeast, bread and temperature
identify
Try it yourself
Which row describes anaerobic respiration?
identify: name or select.
| Row | Oxygen | Nutrient molecules such as glucose | Energy released per glucose molecule, compared with aerobic respiration |
|---|---|---|---|
| A | used | broken down | much less |
| B | not used | not used | much less |
| C | not used | broken down | much less |
| D | not used | broken down | more |
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Scope and sources
Cambridge IGCSE Biology 0610 · 2026–2028 v3 · Original learning materials.
The uses of energy in living organisms (12.1.1); investigating the effect of temperature on respiration in yeast (12.1.2); aerobic respiration and its word equation (12.2.1, 12.2.2) and balanced equation (Supplement 12.2.3); anaerobic respiration, much less energy per glucose molecule, the word equations in yeast and in muscles (12.3.1–12.3.4) and the balanced equation in yeast (Supplement 12.3.5); lactic acid and the oxygen debt, and how the debt is removed (Supplement 12.3.6, 12.3.7). The gas volumes in the experiment come from a teaching model.
Apparatus, amounts and times in the experiment are illustrative. Real practical work follows a teacher-approved safety method.
Official Cambridge syllabus