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Absorption by Roots and the Ascent of Sap
Biology (Science Paper 3) · Chapter 3 · 2. Plant Physiology
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Your path through this chapter
Visual lesson Beta
- Part 1: Diffusion, osmosis and plasmolysis14 slides
- Part 2: Root hairs, absorption and the ascent of sap14 slides
Flashcards Beta
30 cards for quick recall of key terms and facts.
Review the cards Step 3: Not startedPractice
62 board-style questions with instant checks: Multiple choice 21, Short answer 21, Case-based 6, Assertion and reason 5.
Practise Step 4: Not startedChapter test Free
Short and long chapter tests in board pattern, with results and analysis.
Step 5: Not started- Chapter test (long) — Absorption by Roots and the Ascent of Sap · 40 marks · 60 min
- Chapter test (short) — Absorption by Roots and the Ascent of Sap · 20 marks · 30 min
Topics 5
- Imbibition, diffusion and osmosis; osmotic pressure
- Turgidity and flaccidity; plasmolysis and deplasmolysis
- Structure of a root hair and adaptations of roots for absorbing water
- Absorption of water and minerals; active and passive transport (in brief)
- Ascent of sap: root pressure, cohesion, adhesion and transpirational pull; experiments on conduction through xylem