Plant Transport Systems
Xylem and phloem structure, water and sugar transport, root hair adaptations, translocation, and practical investigations
What you'll cover
- Xylem structure: thick walls, lignin, dead cells
- Phloem structure: sieve tubes, companion cells, living
- Root hair cell adaptations for water uptake
- Water transport by transpiration pull
- Transpiration-cohesion-tension theory
- Sugar translocation from source to sink
- Pressure-flow hypothesis in phloem
- Transport tissue location in roots and stems
- Comparison with animal transport systems
- Practical investigations with dye tracking
Study this topic
The Plant Highway System
Key Facts: Plant Transport Systems
Xylem: The Water Transport System
Phloem: The Food Transport System
Root Hair Cell Adaptations
Comparing Xylem and Phloem
Plant vs Animal Transport Systems
Required Practical Investigations
How It Works: The Transpiration-Cohesion-Tension Theory
Key Definitions
Common Misconceptions
Memory Aids
Exam Focus
Higher Pressure-Flow Hypothesis and Companion Cell Role
Knowledge Organiser
Common Misconceptions and Exam Tips
Real-World Applications
Sample Flashcards
Sample Questions
Which substance does xylem tissue transport?
Explain how root hair cells are adapted for their function.
19
exam-style questions
24
revision flashcards
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