Uploaded June 2026 | Updated September 2026, 2 hours ago

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🔬 Discover how scientists prepare smear slides and use Gram staining to make bacteria visible under the microscope.

Join Bonface on this rapid walkthrough covering one of the most important microbiology techniques used in research, healthcare and biology labs around the world.

You’ll see:
🔬 How a bacterial smear slide is prepared
🧪 How stains are applied step-by-step
💜 Why some bacteria appear purple
🩷 Why others appear pink
👀 How scientists use colour differences to identify bacteria

Gram staining is used in:

- Microbiology
- Medical diagnostics
- Infection research
- Laboratory practicals
- Biology education

Perfect for:

- A-Level Biology revision
- Microbiology students
- Science practical skills
- Anyone curious about bacteria and microscopes

Short. Colourful. Real lab science.

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