VIRTUAL BIOLOGY LAB · LAB 22
🧫 Mitosis: Onion Root Tip
Explore the stages of mitosis in actively dividing root-tip cells.
CBSE Classes 11–12Interactive practicalDrag & drop challengeStudent notebook
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🔎 Learning objective
Explore the stages of mitosis in actively dividing root-tip cells.
3Hands-on matches
1Knowledge check
🧬 Interactive laboratory workspace
Explore the biological idea using the model controls. This is a conceptual classroom simulation.
🧫
Mitosis: Onion Root Tip
Mitosis produces two genetically similar daughter nuclei and supports growth and repair.
PRACTICAL WORKBENCH · EXPERIMENT 22
Ready to begin🧪 Prepared-slide counting station: Count mitotic stages in root tip
Mitotic index = cells in mitosis ÷ total cells counted × 100.
APPARATUS & EXPERIMENT CONTROLS
01 · Set up apparatus02 · Adjust variables03 · Run trial04 · Record reading
◉Stage counts▤
OBSERVATION & MEASUREMENTS
Field of view—
Root region—
Cells sampled—
Mitotic index—Awaiting run
Mitotic index = cells in mitosis ÷ total cells counted × 100.
Scientific interpretation will appear after the trial.
Scientific note: Sample cells from the meristematic region and classify each cell by mitotic stage.
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: Mitosis produces two genetically similar daughter nuclei and supports growth and repair.
🎯 Quick knowledge check
Mitosis typically produces:
Select one answer to check your understanding.
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