Contents
Independent final check
Explain without the key
describe
Final check
Describe how you would use a suitable stain to find the pathway of water through the above-ground parts of a plant. (a) Describe the method. (b) Describe the control, and say why it is needed. (c) State what you would expect to see.
describe: give the features or what happens.
Your saved work
Answers, earlier attempts and your Pause and check notes stay in this browser. Export a copy to keep, to move to another device or to hand to your teacher. Importing a copy keeps your current answers and adds earlier attempts.
Scope and sources
Cambridge IGCSE Biology 0610 · 2026–2028 v3 · Original learning materials.
The functions of xylem and phloem (8.1.1) and their positions in sections of roots, stems and leaves of non-woody dicotyledonous plants (8.1.2); the structure of xylem vessels (Supplement 8.1.3); root hair cells, their functions and their large surface area (8.2.1, 8.2.2); the pathway of water through the root, stem and leaf (8.2.3); the pathway of water through the above-ground parts investigated with a stain (8.2.4); translocation, sources and sinks (Supplement 8.4.1–8.4.3). Transpiration is the next module. How far the dye climbs in the experiment comes from a teaching model.
Apparatus, amounts and times in the experiment are illustrative. Real practical work follows a teacher-approved safety method.
Official Cambridge syllabus