VIRTUAL BIOLOGY LAB · LAB 03

🧫 Human Cheek Cell Study

Explore squamous epithelial cells and distinguish animal-cell structures.

CBSE Classes 9–10Interactive practicalDrag & drop challengeStudent notebook

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🔎 Learning objective

Explore squamous epithelial cells and distinguish animal-cell structures.

3Hands-on matches

1Knowledge check

🧬 Interactive laboratory workspace

Explore the biological idea using the model controls. This is a conceptual classroom simulation.

🧫

Human Cheek Cell Study

Cheek cells have a membrane, cytoplasm and nucleus, but no cellulose cell wall.

PRACTICAL WORKBENCH · EXPERIMENT 03

🧪 Microscope & staining station: Prepare a cheek-cell smear

A thin smear with an appropriate stain makes the cell membrane, cytoplasm and nucleus easier to distinguish.

Ready to begin

APPARATUS & EXPERIMENT CONTROLS

01 · Set up apparatus02 · Adjust variables03 · Run trial04 · Record reading

Cotton swab pressure Methylene blue stain Objective lens

◉Slide preparation▤

OBSERVATION & MEASUREMENTS

Cotton swab pressure—

Methylene blue stain—

Objective lens—

Cells visible—Awaiting run

A thin smear with an appropriate stain makes the cell membrane, cytoplasm and nucleus easier to distinguish.

Scientific interpretation will appear after the trial.

Scientific note: Select a gentle swab pressure, stain level and objective. Compare the cell outline and nucleus visibility.

Model conditionObservation focus

Model ready. Choose a condition and run the model to see an observation.

🧪 Hands-on drag & drop challenge

PRACTICAL SKILL BUILDER

Drag 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: Cheek cells have a membrane, cytoplasm and nucleus, but no cellulose cell wall.

🎯 Quick knowledge check

Which structure is absent in cheek cells?

Select one answer to check your understanding.

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