A-LevelBiologyTransport in plantsMay/June 2020Paper 2 Q515 Marks
In most plants, sucrose is the main sugar that is transported from sources to sinks. Fig. 5.1 shows part of one pathway that is used in plant cells to synthesise sucrose. The enzyme sucrose synthase catalyses the transfer of glucose from UDPG (uridine diphosphate glucose) to fructose. The structure of UDPG is shown in Fig. 5.2.
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