A-LevelBiologyEnergy and respirationMay/June 2020Paper 5 Q115 Marks
Some students decided to find the respiratory quotient (RQ) of germinating pea seeds. Pea seeds germinate best at temperatures between 13°C to 18°C. Table 1.1 shows the main biological molecules in pea seeds that could be used to release energy for seed germination. Table 1.1 biological molecule g per 100 g of dry mass carbohydrate 68 protein 25 fat 1 The students used the respirometer shown in Fig. 1.1. [Figure 1.1]
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