Combined Science: Synergy 8465: Transport Over Larger Distances Topical Past Paper Questions

Figure 3 shows how the National Grid links a nuclear power station to consumers. Figure 3 1 Explain why step-up transformers are used in the National Grid. [4 marks] 2 Explain why step-down transformers are used in the National Grid. 2) Explain why step-down transformers are used…

Bees have a simple nervous system. The bee nervous system has similar features to the human nervous system. The bee's antenna is a sense organ. Figure 8 shows a bee feeding on a flower. Figure 8 Bees feed on sugar solution produced by the flowers of plants. 1 When an antenna of a…

Plants have different tissues that are adapted for special functions. One plant tissue is meristem tissue. Meristem tissue: - is made of meristem stem cells • is found in the growing areas of a plant • contains the cells that divide as a plant grows. Figure 12 shows how specialis…