VIRTUAL BIOLOGY LAB · LAB 11
🎨 Leaf Pigment Chromatography
Separate leaf pigments using paper chromatography.
CBSE Classes 11–12Interactive practicalDrag & drop challengeStudent notebook
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🔎 Learning objective
Separate leaf pigments using paper chromatography.
3Hands-on matches
1Knowledge check
🧬 Interactive laboratory workspace
Explore the biological idea using the model controls. This is a conceptual classroom simulation.
🎨
Leaf Pigment Chromatography
Pigments move at different rates due to differences in solubility and attraction to the paper.
PRACTICAL WORKBENCH · EXPERIMENT 11
Ready to begin🧪 Chromatography bench: Separate leaf pigments
Pigments differ in solubility and attraction to the paper, producing bands at different positions.
APPARATUS & EXPERIMENT CONTROLS
01 · Set up apparatus02 · Adjust variables03 · Run trial04 · Record reading
◉Pigment bands▤
OBSERVATION & MEASUREMENTS
Solvent polarity—
Run time—
Leaf extract amount—
Separation distance—Awaiting run
Pigments differ in solubility and attraction to the paper, producing bands at different positions.
Scientific interpretation will appear after the trial.
Scientific note: Load a small concentrated extract spot, place the paper in solvent and observe pigment separation.
Model ready. Choose a condition and run the model to see an observation.
🧪 Hands-on drag & drop challenge
PRACTICAL SKILL BUILDERDrag each item from the tray to its correct destination. On a phone or tablet, tap an item and then tap its destination. Complete all three matches to finish.
🧰 MATERIALS & CONCEPTS
🎯 DROP ZONES
Choose an item and place it in the matching zone.
📓 Observation notebook
Record your observation and export it for revision.
Key concept: Pigments move at different rates due to differences in solubility and attraction to the paper.
🎯 Quick knowledge check
Rf is calculated as:
Select one answer to check your understanding.
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