Biology GCSE
Phloem
What Phloem means in Biology GCSE, as defined for AQA.
Definitions of Phloem
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Reference: AQA
Tissue containing living cells with sieve plates, in which dissolved sugars are translocated from sources such as leaves to sinks such as roots and growing regions.
Living tissue through which dissolved food molecules in cell sap travel, so translocation requires energy from respiration.
Transports dissolved sugars and other products of photosynthesis from the leaves to growing regions and storage organs.
Plant tissue that transports dissolved sugars, especially sucrose, around the plant.
Topics that use Phloem
- Plant organ system (AQA GCSE)
- Plant tissues (AQA GCSE)
Related terms
- Xylem
- Active transport
- Adaptations of root hair cells
- Cohesion and tension
- Concentration gradient
- Continuous transport pathways
- Energy from respiration for active transport
- Epidermal tissue
Using Phloem in the exam
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