Key term for Edexcel GCSE Biology, used in Plant Transport.
The ability to transport substances in two opposite directions (upwards and downwards) at the same time.
Bidirectional appears in Edexcel GCSE Biology revision content for Plant Structures and Functions, especially Plant Transport and Translocation.
Create a free account to access Edexcel GCSE Biology revision notes, track progress, and practise related key terms.